health care facilities and medical gas and vacuum systems

8/13/2019 Health Care Facilities and Medical Gas and Vacuum Systems

1/88

. ~

CHAPTER 13HEALTH CARE FACILITIES AND MEDICAL GAS AND VACUUM SYSTEMS

Part I Special Requirements forHealth Care Facilities.

1301.0 Application.1301.1 Construction and equipment requirementss hall be appl ied o nl y to new cons tr ucti on and newequipment except as modified in individualchapters. Only the altered renovated or modernizedportion of an existing system or individualcomponent shall be required to meet the installationand equipment requirements stated in this standard. the alteration renovation or modernizationadversely impacts existing performance requirementsof a system or component additional upgradingshall be required. [NFPA 991.3.2]1301.2 This chapt er app li es t o t he sredal fixturesand systems in health care facilities and to the specialplumbing requirements for such facilities. Otherplumbing in such facilities shall comply with otherapplicable sections of this code. [ or OSHP 1, 2 3 Medical gas systemsfor health care facilities that areregulated by OSHPD hospitals, skilled nursing facilities;and intermediate care facilities licensed clinics andcorrectional treatment centers shall be in accordance withNFPA 99 2005. See California Building Code Table1224.2 for location and number station outlets foroxygen, vacuum, and medical air.1301.3 This chapter shall not apply to breathing airreplenishment BAR systems.1302.0 Medical Gas and Vacuum Piping Systems Installation Requirements.The installation of medical gas and vacuum pipingsystems shall be in accordance with the requirementsof this chapter and/or the appropriate standardsadopted by the Authority Having Jurisdiction. Foradditional standards see Table 14-1.1302.1 The installation of individual componentsshall be made in accordance with the instructions ofthe manufacturer. Such instructions shall includedirections an d in for matio n d eem ed by th emanufacturer to be adequate for attaining properoperation testing and maintenance of the medicalgas and vacuum sys tems. Copies of t he manu-facturer s instructions shall be left with the systemowner. [NFPA 99 5.1.10.6.9.1 5.1.10.6.9.2 5.1.10.6.9.3]1302.2 The installation of medical gas and vacuumsystems shall be m ade by qualified competent

technicians wh o are experienced i n mak ing suchinstallations. Installers of medical gas and vacuumsystems shall meet the requirements of ANSI/ASSEStandard 6010 Professional Qualification Standard forMedical Gas and Vacuum System Installers. [NFPA 995.1.10.6.11.1 5.1.10.6.11.2]1302.3 Brazing shall be performed by individualswho are qualified under the provisions of Section1311.6. [NFPA 995.1.10.6.11.3]1302.4 Prior to any installation work the installer ofmedical gas and vacuum piping shall provide andmaintain documentation on the job site for thequalification of brazing procedures and individualbrazers that is required under Section 1311.6.[NFPA 99 5.1.10.6.11.4]1303.0 Protrusions from Walls.1303.1 Drinking fountain control valves shall beflush mounted or fully recessed when installed incorridors or other areas where patients ma y betransported on a gurney bed or wheelchair.1303.2 Piping exposed in corridors and other areaswhere subject to physical damage from the move-ment of carts stretchers portable equipment orvehicles shall be protected. [NFPA 995.1.10.6.2.1]

1304.0 Psychiatric Patient Rooms.Piping and drain traps in psychiatric patient roomsshall be concealed . Fixtures an d fittings shall beresistant to vandalism. [NFPA 101]1305.0 Locations for Ice Storage.Ice makers or ice storage containers shall be locatedin nursing stations or similarly supervised areas tominimize potential contamination. [See NFPA 101]1306.0 Sterilizers.1306.1 General. The requirements of this sectionapply to sterilizers and bedpan steamers. Suchequipment shall be installed in accordance with thiscode and the manufacturer s installation instructions.1306.2 Indirect Waste Connections.Waste drainage from sterilizers and bedpan steamersshall be connected to the sanitary drainage systemthrough an airgap in accordance with this chapterand Chapter 8. The size of indirect waste piping shall

223


2/88

1306.2 - 1310.3not be less than the size of the drain connection onthe fixture. Each such indirect waste pipe shall no texceed fifteen 15 feet 4,572 mm) in length and shallbe separately piped t o a r ec ep to r. S uc h r ec ep to rsshall be located in t he s ame roo m as t he e qu ip me ntserved. Except for bedpan steamers, such indirectwaste pipes shall not requ ire traps. A t ra p h av in g aminimum s ea l of t hree 3 inches 80 mm) shall beprovided in the indirect waste pipe for a bedpansteamer.1307.0 Vapor Vents and Stacks for Sterilizers.1307.1 General. When a sterilizer has provision fora vapor vent and such a vent is requi red by themanufacturer the vent shall be extended to theoutdoors above the roof. Sterilizer vapor vents shallbe installed in accordance with the manufacturer sinstructions and shall not be connected to an ydrainage system vent.1308.0 Aspirators.1308.1 See Section 603.4.9, Water Inlets to WaterSupplied Aspirators. Provisions for aspirators orother watersupplied suct ion devices shall beinstalled only with the specific approval of theAuthority Having Jurisdiction. Where aspirators areused for removing body fluids, they shall include acollection container to collect liquids and solidparticles. Aspirators shall indirectly discharge to thesanitary drainage system through an airgap inaccordance with Chapter 8. The potable watersupply to an aspirator shall be protected by avacuum breaker or equivalent backflow protectiondevice in accordance with Section 603.0.

Part II Medical Gas and Vacuum Systems.1309.0 Application.1309.1 The provisions herein shall apply to theinstallation, testing, and verification of medical gasand vacuum piping in hospitals, clinics, and otherhealth care facilities.1309.2 The purpose of this chapter is to providerequirements for the installation testing an dverification of medical gas and medical vacuumsystems from the central supply system to thestation outlets or inlets.1309.3 Wherever the terms medical gas or vacuumoccur, the provisions shall apply to all piped systemsfor oxygen nitrous oxide medical air carbon dioxide, helium medical surgical vacuum wasteanesthetic gas disposal and mixtures thereof.

224

2007 CALIFORNIA PLUMBING CODEWherever the name o f a specif ic gas or vacuumservice occurs, the provision shall apply only to thatgas. [NFPA 99 5.1.1.2]1309.4 This chapter does no t apply to portablecompressed gas systems. [NFPA 99 4-1.3]1309.5 This chapter does not apply to:

A Cylinder and container managementstorage, and reserve requirements.B Gas central supply and bulk supply systems,except as addressed in this chapter.C Electrical connections and requirements.D Motor requirements and controls.E Systems having nonstandard operatingpressures, except as addressed in this chapter.F Waste anesthetic gas disposal WAGD)systems.G Surface-mounted medical gas rail systems

1309.6 The requirements of this chapter shall not beinterpreted to conflict with the requirements ofNFPA 99 Standard for Health are acilities Forrequirements of portions of medical gas and medicalvacuum systems no t addressed in this chapter ormedical gas and medical vacuum systems beyondt he scope of this c ha pt er refer to NFPA 99 Standardfor Health areFacilities1309.7 An existing system that is not in strictcompliance with the provisions of the s tandardC ode) shall b e p ermi tt ed to b e c on ti nu ed i n use aslong as the Authori ty Having Jurisdict ion hasdetermined tha t such use does not constitute adistinct hazard to life. [NFPA 99 4-1.4] Same as the2002 edition of NFPA 99 5.1.1.3.)1310.0 Definitions.1310.1 Building Supply - The pipe from the sourceof supply to a building or structure.1310.2 riticalCare Area - Those special careunits intensive care units coronary care unitsangiography laboratories, cardiac catheterizationlaboratories delivery rooms operating roomspostanesthesia recovery rooms emergencydepartments, and similar areas in which patients areintended to be subjected to invasive procedures andconnected to line operated patient care relatedelectrical appliances. [NFPA 99 3.3.135.2]1310.3 General Care Areas - General care areas arepatient bedrooms examining rooms treatmentrooms clinics, and similar areas in which i t isintended that the patient will come in contact withordinary appliances such as a nurses-call system,electric beds examining lamps telephones an dentertainment devices. [NFPA 99 2-2]


3/88

HEALTH CARE FACILITIES ANDMEDICAL GAS AND VACUUM SYSTEMS1310.4 Manifold :- A device for connecting outlets ofone or more gas cylinders to the central pipingsystem for that specific gas. [NFPA 992-2]1310.5 Medical Air - For purposes of this standard,medical air is air supplied from_ cylinders bulkcontainers, medical air compressors or ha s bee nreconstituted from oxygen USP and oil-free, dr ynitrogen NF. Medical air shall be required to havethe following characteristics:

1 Be supplied from cylinders, bulk containers,medical ai r compressor sources or bereconstituted from oxygen USP and oil-freedry nitrogen NF.

2 Meet the requirements ofmedical air USP.3 Have no detectable liquid hydrocarbons.4 Have less than 25 ppm gaseous hydrocarbons.5 Have equal to or less than 5 mg/m 3 of

permanent particulates sized 1 micron orl arger in th e a ir at normal atmosphericpressure. [NFPA 99 3.3.106, 5.1.3.5.1]

1310 6 Medical Gas - Gas used in a medicalfacility, including oxygen, nitrous oxide, carbondioxide, helium, medical air, and mixtures of thesegases. Standards of purity apply.1310.7 Medical Gas System - Complete systemconsisting of a cen tral supply system manifold,bulk, or compressors , including control equipmentand piping extending to station outlets at the pointswhere medical gases may be required.1310.8 Medical Vacuum System - See 1310.19,VacuumSystem- Levell.1310.9 Nitrogen, NF Oil-Free, Dry Nitrogen fo rBrazing and Testing - Nitrogen complying, at aminimum, with oil-free, dry nitrogen NF. [NFPA 993.3.120.1]1310.10 Patient Care Area - Any portion of a healthcare facility wherein patients are intended to beexamined or treated. [NFPA 99 2-2]1310.11 Purge, Flow - The removal of oxygen froma system by o i l ~ r dry nitrogen during brazing.1310.12 Purge, System - The removal of nitrogenfrom a system with the medical gas required for thatsystem.1310.13 SCFM - Standard cubic feet per minute. [NFPA993.3.159]1310.14 Special Hazard Area - An area such as akitchen or electrical switch-gear room.1310.15 Station Inlet - An inlet point in a medicalsurgical piped vacuum distribution system at whichthe user makes connections an d disconnections.[NFPA 99 3.3.171]1310.16 Station Outlet - An inlet point in a piped

1310.4 1311.1

medical/surgical vacuum distribution sys tem atwhich the user makes connections anddisconnections. [NFPA 3.3.167]1310.17 Use Point - A room or area of a roomwhere medical gases are dispensed to a singlepatient for medical purposes. A use point ispermitted to be comprised of a number of stationoutlets of different gases. [NFPA 99 2-2]1310.18 User Outlet - See Station Outlet.1310.19 Vacuum System - Level 1 - A systemconsisting of central vacuum-producing equipmentwith pressure and operating controls, shutoff valves,alarm warning systems, gauges, and a network ofpiping extending to and terminating with suitablestation inlets at locations where patient suction couldbe required. [NFPA 99 2-2]1310.20 Valve, Isolation - A valve that isolates onepiece of equipment from another.1310.21 Valve, Riser - A valve at the base of avertical riser that isolates that riser.1310.22 Valve, Service - A valve serving horizontalpiping extending from a riser to a s ta tion out le t orinlet.1310.23 Valve Source - A single valve at thesource that controls a number of units that make upthe source.1310.24 Valve, Zone A valve that controls the gasor vacuum to a particular area.1310.25 Waste Anesthetic Gas Disposal - Theprocess of capturing and carrying away gases ventedfrom the patient breathing circuit during the normaloperation of gas anesthesia or analgesia equipment.[NFPA 99 3.3.178]1311.0 General Requirements.1311.1 Oxygen Compatibility - Tubes valvesfittings, station outlets, and other piping cOJ.1lponentsin medical gas systems shall have been cleaned foroxygen service by the manufacturer prior toinstallation in accordance with CGA 4.1, Gleaning quipmentfor Oxygen Service except that fittings shallbe permitted to be cleaned by a suppl ier or agencyother than the manufacturer. [NFPA 99 5.1.10.1.1]1311.1.1 Components include but ar e not

limited to containers valves valve seatslubricants, fittings, gaskets, and interconnectingequipment including hose. Easi ly ignitablematerials shouldbe avoided.

Compatibility involves both combustibilityand ease of ignition. Materials that burn in airwill burn violently in pure oxygen at normalpressure and explosively in pressurized oxygen.

225


4/88

1311.1-1311.6

Also, many materials that do not burn in air willdo so in pure oxygen particularly underpressure. Metals for containers and piping haveto be carefully selected, depending on serviceconditions. The various steels are acceptable formany applications, but some service conditionscan call for other materials usually copper or itsalloys because of their greater resistance toig nitio n and lower rate of combustion.Similarly, materials that can be igni ted in airhave lower ignition energies in oxygen. Manysuch materials can be ignited by friction at avalve seat or s tem packing or by adiabaticcompression produced when oxygen at highpressure is rapidly introduced into a systeminitially at low pressure. 3 2Materials used in cen tral supplysystems shallmeet the following requirement:

In those portions of systems intended tohandle oxygen o r nitrous oxide at gaugepressures of less than 2,070 kPa 300 psimaterial construction shall be compatible withoxygen under the temperatures and pressures towhich the components can be exposed in thecontainment and use of oxygen, nitrous oxide,mixtures of these gases, or mixtures containingmore than 23.5 percent oxygen. [NFPA 995.1.3.4.3 2 ]

3 2Certification of medical gas and medicalvacuum systems shall conform to the requirementsof Section 1328.0 of this code, the Authority HavingJurisdiction, and NFPA 99 Standard for Health CareFacilities section 5.1.12. [NFPA 5.1.12]. 3 3Prior to any installation work, the installer ofmedical gas and vacuum piping shall provide andmaintain documentation on the job s ite for thequalification of brazing procedures and individualbrazers that is required under Section 1311.6. [NFPA995.1.10.6.11.4]

3 3 Each length of tube shall be deliveredplugged or capped by the manufacturer andkept sealed unti l prepared for installation.Fittings, valves, and other components shall bedelivered sealed, labeled, and kept sealed untilprepared for installation. [NFPA 99 5.1.10.1.2and 5.1.10.1.3]

3 4All medical gas and medical vacuum systemsshall be supplied from a source consisting of at leasttwo uni ts - primary and secondary, e.g., a manifoldconsisting of two cylinder banks with a t least twocylinders in each bank a minimum of two ai rcompressors, or a minimum of two vacuum pumps.However, two supply pipelines are not required. 3 5Health Care Organization personnel shall be

6

7 CALIFORNIA PLUMBING CODE

permitted to install piping systems al l therequirements of this chapter are met duringinstallation. [NFPA 99 4-3.1.2.1O b ] 3 6Brazing procedures and brazer performancefor the installation of medical gas and vacuumpiping shall be qualified in accordance with eitherSection IX, Welding and razing Qualifications of theASME Boiler and Pressure Vessel Code, or AWSB2.2, Standard for razingProcedure and Performance ualifications both as modified below. [NFPA5.1.10.6.12.1]

3 6 Brazers shall be qualified by visualexamination of the test coupon followed bysectioning. [NFPA5.1.10.6.12.2] 3 6 2The Brazing Procedure SpecificationBPS shall address cleaning joint clearance,overlap, internal purge gas purge gas flow rate,and filler metal. [NFPA 99 4-3.1.2.12 b ] 3 6 3 The brazing procedure specificationand the record of brazer performancequalification shall document filler metal used,cleaning joint clearance overlap internalpurge gas, and flow rate during brazing ofcoupon, and the absence of internal oxidationin the completed coupon. [NFPA 5.1.10.6.12.4] 3 6 4 Brazing procedures qualified by atechnically competent group or agency shall bepermitted under the following conditions:

1 The brazing procedure specification andthe procedure qualification recordmeets the requirements of this standard.

2 The employer obtains a copy ofboth thebrazing procedure specification and thesupporting qualification records fromthe group or agency and signs and datesthese records thereby acceptingresponsibility for the qualifications thatwere performed by the group or agency.

3 The employer qualifies a t l east onebrazer following each brazing procedurespecification used. [NFPA5.1.10.6.12.5] 3 6 5An employer shall be permitted toaccept brazer qualification records of a previousemployer under the following conditions:

1 The brazer has been qualified followingthe same or an equivalent procedurethat the new employer uses.2 The new employer obtains a copy of the

record of brazer performance qualification tests from the previousemployer and signs and dates theserecords, thereby accepting responsibilityfor the qualifications performed by theprevious employer. [NFPA 99 5.1.10.6.12.6]


5/88

HEALTH CARE FACILITIES ANDMEDICAL GAS AND VACUUM SYSTEMS

1311.6.6 Performance qualifications of brazersshall remain in effect indefinitely unless thebrazer does no t braze with t he qua li fi edprocedure for a period exceeding six months orthere is a specific reason to question the abilityof the brazer. [NFPA 99 5.1.10.6.12.7]

1312.0 Plan Review.1312.1 Before any medical gas or medical vacuumsystem is installed or altered in any hospitalmedical facility or clinic duplicate plans an dspecifications shall be filed with the AuthorityHaving Jurisdiction. Approval of the plans shall beobtained prior to issuance of any permit by theAuthority Having Jurisdiction.1312.2 Plans an d specifications shall show thefollowing in detail:

1312.2.1 Plot plan of the site drawn to scaleindicating the location of existing or newcyl inde r s to rage areas property linesdriveways and existing or proposed buildings.1312.2.2 Piping layout of the proposed pipingsystem or alteration including alarms valvesorigin of gases and user outlets/inlets. Thedemand and loading of any piping existing orfuture shall also be indicated.1312.2.3 Complete specification of materials.

1312.3 Plans and specifications submitted to theAuthority Having Jurisdiction shall clearly indicatethe nature and extent ofthe work proposed and shallshow in detai l tha t such work will conform to theprovisions of this code.1312.4 A record of as built p la ns a nd valveidentification records shall rem ai n on the site atall times.1313.0 System Performance.1313.1 Required Operating Pressures. All medicalgas and medical vacuum systems shall be capable ofdelivering service in the pressure ranges listed in Table13 1. [NFPA 99 Table 5.1.11]1313.2 Minimum Flow Rates. All medical gas andmedical vacuum systems shall be capab le ofsupplying the flow rates listed in Table 13 2.1313.3 Minimum Station Outlets/Inlets. Stationoutlets and inlets for medical gas and medical vacuumsystems shall be provided as listed in Table 13 3.1314.0 Required Pipe Sizing.1314.1 Where the maximum demand for eachmedical gas or vacuum system and the maximumlength of piping between the source equipment and

1311.6 1314.3

the most distant station outlet/inlet do not exceed thevalues in Table 13 6 the size ofpipe of each section ofthe system shall be determined using Tables 13 4 and13 6. The size for systems beyond the range of Table13 6 shall be determined by using the methods setforth in Section 1314.3 of this chapter.1314.2 To determine the size of each section of pipein a ny system within th e range of Table 13 6proceed as follows:

1314.2.1 Measure the length of the pipe fromthe source equipment location to th e mostremote station inlet/outlet on the system.1314.2.2 In Table 13 6 select th e columnshowing that distance or th e nex t longerdistance if the table does not give the exactlength.1314.2.3 Starting at the most remote outlet/inletfind in the vertical column just selected themedical gas or v acuu m d em an d for thatinlet/outlet. the exact figure of demand is notshown choose the next larger figure below in thecolumn.1314.2.4 Opposite this demand figure in thefirst column at the left in Table 13 6 will befound the correct size of pipe.1314.2.5 Using this same vertical columnproceed in a similar manner for each section ofpipe serving this inlet/outlet. For each section ofpipe determine the total gas or vacuum demandsupplied by the section using Table 13 4.1314.2.6 Size each section of branch piping notpreviously sized by measuring the distance fromth e source equipment location to th e mostremote inlet/outlet in that branch and followthe procedures of Sections 1314.2.2 1314.2.31314.2.4 and 1314.2.5.

Note:Size branch piping in the order of the distance fromthe source location beginning with the most distantoutlet not previously sized.1314.3 For conditions other than those covered bySection 1314.1 of this section such as longer runs ofgreater gas or vacuum demands the size of each gasor vacuum piping system shall be determined bystandard engineering methods acceptable to theAuthority Having Jurisdiction and each system shallbe so designed tha t the total pressure drop or gainbetween the source equipment and any inlet/outletwill no t exceed the allowable pressures shown inTable 13 1.


6/88

1315.0 -1316.61315 Workmanship1315 1 All design, construction, an d workmanshipshall be in conformity with accepted engineeringpractices and shallmeet the requirements of this code. 3 5 2 Cracks, holes, or other imperfections inmaterials shall no t be concealed by welding, brazing,or soldering, or by using paint, wax, tar, or otherleak-sealing or repair agents.1315 3 Burred ends of all tubing shall be deburredusing a deburring tool to the full bore of the tube,an d all chips shall be removed.1316 Materials The provisions of this sectionapply to the field-installed piping for the distributionofmedical piped gases. [NFPA4-3.1.2.7]1316 1 Tubes, valves, fittings, station outlets, an dother piping components in medical gas systemsshall h av e b ee n cleaned for oxygen service by themanufacturer prior to installation in accordancewith CGA 4.1, leaningEquipment for Oxygen Serviceexcept that fittings shall be permitted to be cleanedby a supplier o r a ge nc y o th er t ha n th e manufacturer. [NFPA 99: 5.1.10.1.1] 3 6 2 Each length of tube shall be deliveredplugged o r c ap pe d by the manufacturer a nd k ep tsealed u n ti l p r ep a re d for installation. Fittings,valves, an d other c om po ne nt s sha ll b e d el iv er edsealed, labeled, an d kept sealed until prepared forinstallation. [NFPA 99: 5.1.10.1.2,5.1.10.1.3]1316 3 Tubes shall be hard-drawn seamless copperASTM B 819 medical gas tube, Type L, except thatwhere operating pressures ar e above a gaugepressure of 1,275 kPa 185 psi), Type K shall be usedfor sizes larger than DN80 NPS 3) 3-1/8 in. O.D.).

ASTMB 819 medical gas tube shall be identifiedby th e manufacturer s markings OXY, MED,OXY /MED, OXY / ACR, or ACR/MED in blueType L) or green TypeK).

Piping for vacuum systems shall be constructedof any of the following:1) Hard-drawn seamless copper tube

a) ASTM B 88, Standard Specification fo rSeamless Copper Water Tube, copper tubeTypes K, L, M).b) ASTM B 280, Standard Specification forSeamless Copper Tubing for Air Condition

in g an d Refrigeration Field Service, copperACR tube.c) ASTMB819, Standard Specificationfor Seamless Copper Tube for Medical Gas Systems,coppermedical gas tubing Type K orL).

2) Stainless steel tubePiping systems shall be designed an d sized to

8

7 C LIFORNI PLUM ING CODE

deliver the r equired flow r at es a t t he u ti li za ti onpressures.Mains an d branches in medical gas-pipingsystems shall be no t less than DN15 NPS 1/2) 5/ 8in. O.D.) size.Mains and branches in medical-surgical vacuumsystems shall be not less than DN20 NPS 3/4) 7/ 8

in. O.D.) size.Drops to individual station outlets an d inletsshall be no t less than DN15 NPS 1 /2 ) 5 /8 in. O.D.)size.Runouts to alarm panels an d connecting tubingfor gauges an d alarm devices shall be permitted tobe DN8 NPS 1/4) 3/ 8 in. O.D.) size. [NFPA 995.1.10.1.4,5.1.10.1.5,5.1.10.10.1]

1316 4 Turns, offsets, and other changes in directionin welded or brazed medical gas an d vacuum pipingshall be made with wrought-copper capillary fittingscomplying with ASME B16.22, Wrought Copper an dCopper Alloy Solder-Joint Pressure F ittings, orbrazed fittings complying with ASME B16.50,Wrought Copper a nd C op pe r Alloy Braze-JointPressure Fittings.

1316 4 1 Cast-copper alloy fittings shall no t bepermitted.1316 4 2 Branch connections in vacuum pipingsystems shall be permitted to be ma de u si ngmechanically formed, drilled, an d extruded teebranch connections that are formed in accordancewith th e tool manufacturer s instructions an dbrazed. [NFPA 5.1.10.3.1, 5.1.10.3.2, 5.1.10.3.3,5.1.10.5.8 4)- 7)]

3 6 5 Th e following s pe ci al f it ti ng s s ha ll bepermitted to be used in lieu of brazed joints:1) Memory-metal couplings having temperature

an d pressure ratings joints not less than thatof a brazed joint.2) Listed or approved metallic gas tube fittingsthat, when made up, provide a permanentjoint having the mechanical, thermal, an dsealing integrity of a brazed joint.3) Dielectric fittings where required by themanufacturer of special medical equipmentto electrically isolate the equipment from thepiping distribution system.4) Axially swaged, elastic strain preload fittingsprovidingmetal to metal sealhaving pressure

an d temperature ratings not less than that ofa b ra ze d j oi nt a nd , when complete, ar epermanent and nonseparable. 3 6 6 The following joints s hall be prohibi te dthroughout medical gas a nd v ac uu m distributionpipeline systems:

1) Flared an d compression-type connections,


7/88


8/88

1318 4 1319 1

1 Access shall be prov ided a t the joints forvisual inspection and leak testing.2 The conduit, cover, or enclosure shall be self

draining and no t retain groundwater in prolonged contact with the pipe.Buried piping that will be subject to surfaceloads shall be buried at a depth that wil l protect thepiping and its enclosure from excessive stresses.

The minimum backfilled cover above the top ofthe pipe or its enclosure for buried piping outside ofbuildings shall be 36 inches 900 rom , except that theminimum cover shall be permitted to be reduced to18 inches 450 mm where physical damage isotherwise prevented.

Trenches shall be excavated so that the pipeenclosure has firm, substantially continuous bearingon the bottomofthe trench.Backfill shall be clean and compacted so as toprotect and uniformly support the pipe enclosure.A continuous tape or marker placed immediatelyabove the enclosure shall clearly identify the pipeline

by specific name.A continuous warning means shall also be

provided above the pipeline at approximately onehalf the depth ofbury.Where underground piping is installed througha wall sleeve, the ends of the sleeve shall be sealed to

prevent the entrance of groundwater into thebuilding. [NFPA 99 5.1.10.6.5]1318 5 Hose and flexible connectors, both metallicand nonmetallic, shall be no longer than necessaryand shall not penetrate or be concealed in walls,floors, ceilings, or partitions. Flexible connectors,metallic or nonmetallic, shall have a minimum burstpressure, with a gauge pressure of 6,895 kPa 1,000psi . [NFPA 99 5.1.10.6.7] 3 8 6Where a positive-pressure medical gaspiping distribution system, origina lly used orconstructed for the use at one pressure and for onegas, is converted for operation at another pressure orfor another gas, all provisions of NFPA 5.1.10 shallapply as if the system were new.

vacuum system shall not be permitted to beconverted for use as a gas system. [NFPA 995.1.10.6.10]1318 7 Piping exposed in corridors and other areaswhere subjec t to physical damage from themovement of carts, stretchers, portable equipment, orvehicles shall be protected.1318 8 Piping shall be supported from the buildingstructure in accordance with MSS Standard PracticeSP-69, iping angers and Supports - Selection andApplication

230

7 CALIFORNIA PLUMBING CODE

Hangers and supports shall comply with MSSStandard Practice SP-58, Pipe Hangers and Supports -Materials Design and ManufactureHangers for copper tube shall have a copperfinish and be sized for copper tube.In potentially damp locations, copper tube hangers

or supports that are in contact with the tube shall beplastic-coated or otherwisebe insulated from the tube.Maximum support spacing shall be inaccordance with Table 13-7. [NFPA Table 5.1.10.6.4.5]

1318 9 Where required, medical gas and vacuumpiping shall be seismically restrained againstearthquakes in accordance with the applicablebuilding code. [NFPA 99 5.1.10.6.4.6] Seismicconsiderations shall conform to the requirements ofthis code and the AuthorityHaving Jurisdiction.1318 10 Two or more medical gas-piping systemsshall no t be interconnected for testing or any otherreason. Leak testing shall be accomplished byseparately charging and testing the individual pipingsystem. [NFPA 99 4-3.1.2.10 d ]1318 11 Piping shall be labeled by stenciling oradhesive markers that identify the patient medicalgas, the support gas, or vacuum system, and include:

1 The name of the gas/vacuum system or thechemical symbolpe r NFPA 99 Table 5.1.11.2 The gas or vacuum system color code perTable 5.1.11.3 Where positive-pressure gas piping systemsoperate at pressures other than the standardgauge pressure in NFPA 99 Table 5.1.11, the

pipe labeling shall include the operatingpressure in addition to the name of the gas.[NFPA 99 5.1.11.1.1]

1319 0 Joints This section sets forth the requirements for pipe joint installation for positive-pressuremedical gas systems.1319 1 Brazed joints shall be made using a brazingalloy that exhibits a melting temperature in excess of1,000F 538C to retain the integri ty of the pipingsystem in the event of f ire exposure. [NFPA 995.1.10.5.1.1]

Brazed tube joints shall be the socket type.[NFPA 99 5.1.10.5.1.2]F ille r meta ls shall bond with and be

metallurgically compatible with the base metalsbeing joined. [NFPA 99 5.1.10.5.1.3]Filler metals shall comply with ANSI AWSA.5.8, SpeCification for Brazing Filler Metal [NFPA 995.1.10.5.1.4]


9/88


Copper-to-copper joints shall be b razed u si ng acopper-phosphorus or copper-phosphorus-silverbrazing filler metal BCuP series) without flux.[NFPA 99 5.1.10.5.1.5]

Flux shall only be used when brazing dissimila.rmetals, such as copper and bronze or br as s, u si ng asilver BAg series) brazing filler material. [NFPA 995.1.10.5.4.1]

Joints to be brazed in place shall be accessible fornecessary preparation, assembly, heating, fillerapplication, cooling, cleaning, and inspection. [NFPA995.1.10.5.1.7]1319.2 Tube ends s hall be cut s quare u si ng a s harptubing cutter to avoid deforming the tube. [NFPA 995.1.10.5.2.1]

The cutting wheels art t ub in g cut ters s hall befree from grease, oil, or other .lubricant not suitablefor oxygen service. [NFPA 99 5.1.10.5.2.2]The cut ends of the tube shall be deburred with asharp, clean deburring tool, taking care to preventchips from entering the tube. [NFPA 99 5:1.10.5.2.3]

1319.3 The interior surfaces of tubes, fittings, andother components that are cleaned for oxygen serviceshall be stored and handled to avoid contaminationprior to assembly and brazing. [NFPA 99 5.1.10.5.3.1]The exterior surfaces of tube ends shall be

cleaned prior to brazing to remove any surfaceoxides. [NFPA 99 5.1.10.5.3.2]When cleaning the exterior surfaces of tubeends, no matter shall be permitted to enter the tube.[NFPA 99 5.1.10.5.3.3] the interior surfaces of fitting sockets becomecontaminated prior to brazing, t hey sha ll berecleaned for oxygen in accordance with NFPA 995.1.10.5.3.10 and be cleaned for brazing with a clean,oil-free wire brush. [NFPA 99 5.1.10.5.3.4]Clean, nonshedding, abrasive pads shall be usedto clean the exterior surfaces of tube ends. [NFPA 995.1.10.5.3.5] .The use of steel wool or sand cloth shall beprohibited. [NFPA 99 5.1.10.5.3.6]The cleaning process shall not result in groovingof the surfaces to be joined. [NFPA 99 5.1.10.5.3.7]After being abraded, the surfaces shall be wipedusing a clean, l int-free white cloth. [NFPA 995.1.10.5.3.8]Tubes, fittings, valves, and other componentsshall be visually e x m i n ~ internally before being

joined, to verify that they have not becomecontaminated for oxygen service and that they are freeof obstructions or debris. [NFPA 99 5 1 10 5 3 9]The interior surfaces of tube ends, fittings, and

other components that were cleaned fo r oxygen

1319 1 1319 5

service by the manufacturer, but becomecontaminated prior to being insta lled, shall bepermitted to be recleaned on-site by the installer bythoroughly scrubbing the interior surfaces with aclean, hot water-alkaline solution, such as sodiumcarbonate or trisodium phosphate 450 g to 11 L lIb.to 3 gal.) of po ta ble water and thoroughly rinsingthem with clean, hot potable water. [NFPA 995.1.10.5.3.10]

Other aqueous cleaning solutions shall bepermitted to be used for on-site recleaning permittedin NFP A 99:5.1.10.5.3.10, provided that they are asrecommended in-CGA Pamphlet G-4.1, leaningEquipment for Oxygen Service and are listed in eGAPamphlet 02-DIR, Directory of leaning gents forOxygen Service [NFPA 99 5.1.10.5.3.11]

Material that has become contaminatedinternally and is not clean for oxygen service shallnot be installed. [NFPA 99 5.1.10.5.3.12]

Joints shall be brazed within eight hours afterthe .surfaces are cleaned for brazing. [NFPA 995.1.10.5.3.13]1319.4 Flux shall only be u sed when brazingdissimilar metals such as copper and bronze or brass,using a silver BAg series brazing filler metal.[NFPA 99 5.1.10.5.4.1]

Surfaces shall be c le aned for brazing inaccordance with Section 1319 3 [NFPA 99 5.1.10.5.4.2]Flux shall be applied sparingly to minimize

contamination of the i ns id e of the tube with flux.[NFPA 99 5.1.10.5.4.3]The flux s hall b e app li ed and worked o ver t heclean ed s ur faces t o b e brazed using a s ti ff b ri st le

brush to ensure complete coverage and wetting ofthe surfaces with flux. [NFPA 99 5.1.10.5.4.4]Where possible, short sections of copper tubeshall be brazed onto the noncopper component andt he i nt er io r of the s ub as semb ly s hall b e clean ed offlux prior to installation in the piping system. [NFPA

99 5.1.10.5.4.5]On joints DN20 NPS 3/4 7/8 in. a D size

and smaller, flux-coated brazing rods shall bepe rm it te d to b e us ed in lieu of a pp ly in g flux to thesurfaces being joined. [NFPA 99 5.1.10.5.4.6]1319.5 Tube ends shall be inserted fully into thesocket of the fitting. [NFPA 99 5.1.10.5.6.1]

Where flux is permitted, the joint shall be heatedslowly until the flux has l iquef ied. [NFPA 995.1.10.5.6.2]

After f lux i s l iquefied, or where flux is no tpermitted to be used,the joint sha:ll be heated quicklyto the brazing temperature, taking care no t to overheatthe joint. [NFPA 99 5 1 10 5 6 3]3


10/88

1319 5 1320 1

Techniques for heating the joint; applying thebrazing filler metal; and mak ing horizontalvertical, and large-diameter joints shall be as statedin sections on Applying Hea t and Brazing andHorizontal and Vertical Joints in Chapter VII,Brazed Joints, in the CDA opper TubeHandbook[NFPA 99 5.1.10.5.6.4]1319.6 When being brazed, joints shallbe continuouslypurged with oil-free, dry nitrogen NF to prevent theformation of copper oxide on the inside surfaces ofthe joint. [NFPA 99 5.1.10.5.5.1]

The source of the purge gas shall be monitored,and the installer shall be audibly alerted when thesource content is low. [NFPA 99 5.1.10.5.5.2]

The purge gas flow rate shall be control led bythe use of a pressure regulator and flow meter orcombination thereof. [NFPA 99 5.1.10.5.5.4]

Pressure regulators alone shall not be used tocontrol purge gas flow rates. [NFPA 99 5.1.10.5.5.4]In order to ensure that all ambient air has been

removed f rom the pipel ine prior to brazing anoxygen ana lyzer shall be used to v er if y theeffectiveness of the purge. The oxygen analyzer shallread below 1 percent oxygen concentration beforebrazing is to begin. [NFPA 99 5.1.10.5.5.5]

During and after installation, openings i n t hepiping system shall be kept sealed to maintain anitrogen atmosphere within the piping to preventdebris or o ther contaminants from entering thesystem. [NFPA 99 5.1.10.5.5.6]

While a joint is being brazed a dischargeopening shall be provided on the opposite side of thejoint from where the purge gas is being introduced.[NFPA 995.1.10.5.5.7]

The flow of purge gas shall be maintained untilthe joint is cool to the touch. [NFPA 99 5.1.10.5.5.8]After the joint has cooled, the purge dischargeopening shall be sealed to prevent contamination of

the inside of the tube and maintain the nitrogenatmosphere within the piping system. [NFPA 995.1.10.5.5.9]

The f inal connection of new piping to anexisting in-use pipeline shall be permitted to bemade without the use of a nitrogen purge. [NFPA 995.1.10.5.5.10]

After a final connection in a positive-pressuremedical gas pipeline is made without a nitrogenpurge an outlet in the immediate downstream zoneof the affected portions of both the new and existingin-use piping sha ll be tes ted in accordance withNFPA 99: 5.1.12.3,9, Final Tie-In Test. [NFPA 995.1.10.5.5.11]

232

2 7 CALIFORNIA PLUMBING CODE

When using the autogenous orbital weldingprocess, joints shall be continuously purged insideand outside with inert gas es in accordance withthe qualified welding procedure. [NFPA 995.1.10.5.5.12]1319.7 After brazing, the outside of all joints shallbe cleaned by washing with water and a wire brushto remove any residue and permit clear visualinspection of the joint. [NFPA 99 5.1.10.5.7.1]

Where flux has been used, the wash water shallbe hot. [NFPA 99 5.1.10.5.7.2]

Each brazed joint shall be visually inspectedafter cleaning the out side surfaces. [NFPA 995.1.10.5.7.3]

Joints exhibiting the following conditions shallnot be permitted:

1 Flux or flux residue when flux or fluxcoated BAg series rods are used withdissimilar metals .

2 Base metal melting or erosion.3 Unmelted filler metal.4 Failure of the filler metal to be clearly visibleall the way around the joint at the interfacebetween the socket and the tube.5 Cracks in the tube or component.6 Cracks in the brazed filler metal.7 Failure of the joint to hold the test pressure

under the ins ta ll er -per formed initialpressure test 1329.10 and standing pressuretest Section 1329.11 . [NFPA 995.1.10.5.7.4]Brazed joints that are identified as defective

under conditions 1319.7 2 or 5 shall be replaced.[NFPA 99 5.1.10.5.7.5]Brazed joints that are identified as defective

under Sections 1319.7 1 , 3 , 4 , 6 , or 7 shall bepermitted to be repaired, except that no joint shall bereheated more than once before being replaced.[NFPA 99 5.1.10.5.7.6]1320.0 Valves Requirements Locations nLabeling.1320.1 General Requirements. Shutoff valvesaccessible to other than authorized personnel shallbe installed i n valve boxes with f rangib le orremovable windows large enough to permit manualoperation of valves. [NFPA 99 5.1.4.2.1]

Shutoff valves for use in certain areas, such aspsychiatric or pediatric shall be permitted to besecured with the approval of the Authority HavingJurisdiction to prevent inappropriate access. [NFPA995.1.4.2.2]1320.1.1 Where valves are concealed in any


11/88


enclosure, the door or entry to the enclosureshall be identified and color coded with the typeof gas service installed, as described in Section1323.0. Enclosures shall be of sufficient size topermit valve operation. Valve handles in the offposition shall prevent closure of the access panelor door.132 2 In-line shutoff valves intended for use toisolate piping for maintenance or modification shallmeet the following requirements:

1 Be located in a restricted area.2 Be locked or latched open.3 Be identified in accordance with Section1323. [NFPA 99 5.1.4.9.1]

132 3 Shutoff valves provided for the connection offuture piping shall meet the following requirements:1 Be locked in a restricted area.2 Be locked or latched closed.3 Be identified in accordance with Section1323. [NFPA 99 5.1.4.10]132 3 1 Future connection valves shall belabeled as to gas content. [NFPA 99 5.1.4.10.1]132 3 2 Downstream piping shall be closedwith a brazed cap with tubing allowance forcutting and rebrazing. [NFPA 99 5.1.4.10.2]132 3 3 A zone valve shall be locatedimmediately outside each vital life supportcritical care an d anesthetizing location ineach medical gas and/ or vacuum line andlocated so as to be readily accessible in anemergency. [NFPA 99 5.1.4.8.7]132 3 4 All gas-delivery columns, hose reels,ceiling tracks control panels pendantsbooms, or o ther special installations sha ll belocated downstream of the zone valve. [NFPA995.1.4.8.7.1]132 3 5 Zone valves shall be so arranged thatshutting of f the supply of gas to anyoneoperating room or anesthetizing location willnot affect the others. [NFPA 99 5.1.4.8.7.2]

132 4 Source Valve A shutoff valve shall beplaced at the immediate connection of each sourcesystem to the distribution piping to permit the entiresource, including all accessory devices such as hairdryers, final line regulators, etc. , to be isolated fromthe facility. [NFPA 99 5.1.4.4]

132 4 1 The source valve shall be located in theimmediate vicinity of the source equipment.[NFPA 99 5.1.4.4.1]132 4 2 The source valve shall be labeled inaccordance with Section 1323.0, Source Valve forthe Source Name . [NFPA 99 5.1.4.4.2,5.1.11.2.3]

1320 1 1320 8

132 5 Main Valve A shutoff valve shall be providedin the main supply line inside of the building, exceptwhere one or more of the following conditions exist:

1 The source and source valve are locatedinside the building served.2 The source system is physically mounted to

the wall of the building served and the pipeline enters the building in the immediatevicinity of the source valve. [NFPA 99 5.1.4.5]132 5 1 The main line valve shall be located topermit access by authorized personnel only i.e.,by locating above a ceiling or behind a lockedaccess door . [NFPA 99 5.1.4.5.1]132 5 2 The main line valve shall be located onthe facility side of the source valve and outside ofthe source room, enclosure, or where the mainline first enters the building. [NFPA 99 5.1.4.5.2]132 5 3 The main line shall be labeled inaccordance with Section 1323.0. [NFPA 995.1.4.5.3 and 5.1.11.2.4]

132 6 Riser Valve Each riser supplied from themain l ine shall be provided with a shutoff valveadjacent to the riser connection. Riser valves shall bepermitted to be loca ted above ceilings, but shallremain accessible and no t be obstructed. [NFPA 995.1.4.6,5.1.4.6.1]132 7 Zone Valve All station outlets/inlets shallbe supplied through a zone valve as follows:

1 The zone valve shall be placed such that awall intervenes between the valve andoutlets/inlets that it controls.

2 The zone valve shall serve only outlets/inletslocated on that same story.132 7 1 Zone valves shall be readily operablefrom a standing position in the corridor on thesame floor they serve. [NFPA 99 5.1.4.8.1]132 7 2 Zone valves shall be so arranged thatshutting off the supply of medical ga s orvacuum to one zone will not affect the supply ofmedical gas or vacuum to another zone or therest of the system. [NFPA 99 5.1.4.8.2]

132 8 Service Valves Service valves shall beplaced in the branch piping prior to any zone valvebox assembly on that branch. [NFPA 99 5.1.4.7.2]

132 8 1 O nly one service valve shall berequired for each branch off of a riser regardlessof how many zone valve boxes are installed onthat lateral. [NFPA 99 5.1.4.7.1]132 8 2 Servicevalves shall be installed to allowservicing or modification of lateral branch pipingfrom a main or riser without shutt ing down theentiremain, riser, or facility. [NFPA 99 5.1.4.7]

233


12/88

1321 0 1323 41321 0 Pressure Regulating Equipment1321 1 Pressure-regulating equipment shall beinstalled in the supply main upstream of t he f inalline-pressure valve. Where multiple piping systemsfor the same gas at different operating pressures arerequired separate pressure-regulating equipment,relief valves and source shutoff valves shall beprovided for each pressure.1321 2 Each central supply system shall have apressure-relief valve set at fifty 50 percent abovenormal line pressure, installed downstream of thepressure regulator and upstream of any shutoffvalve. This pressure-relief valve shall be permitted tobe set at a higher pressure provided anotherpressure-relief valve set at 50 percent above normalline pressure is installed in the main supply line.

1321 2 1 All pressure-relief valves shall closeautomatically when excess pressure has beenreleased.1321 2 2 Pressure-relief valves set at 50 percentsha ll be ven ted to the outside from all gassystems except medical air or if the totalcapacity of the supply system is in excess of3,000 feeP 85 m3) of gas.1321 2 3 Pressure-relief valves shall be of brassor b ronze and specially designed for the gasservice involved.1321 2 4 A pressure-relief valve shall not beisolated from its intended use by any valve.

1321 3 Pressure GaugesPressure and vacuum indicators shall be readablefrom a standing position. Pressure/vacuumindicators shall be provided at the followinglocations, as a minimum:

1 Adjacent to the alarm-initiating device forsource main-line pressure and vacuum alarmsin the master alarm system.

2 At or in area alarm panels to indicate thepressure/vacuum a t the a larm act ivat ingdevice for each system that is monitored bythe panel.

3 On the s tation outlet/inlet side of zonevalves. [NFPA 995.1.8.2.1,5.1.8.2.2]1322 0 Station Outlets/lnletsStation outlets and inlets shall be installed in strictaccordance with the manufacturers instructions.1322 1 After installation of the piping, bu t beforeinstallation o f t he s ta ti on outlets/inlets and othermedical gas and medical gas system componentse.g. pressure-actuating switches for alarmsmanifolds pressure gauges or pressure reliefvalves), the line shall be blown clear by means of oilfree, dry nitrogen.

234

2007 CALIFORNIA PLUMBING CODE1323 0 labeling and Identification The gas contentof medical gas piping systems shall be readilyidentifiable by appropriate labeling with t he n ameand pressure contained. Such labeling shall be bymeans of metal tags stenciling stamping oradhesive markers, in a manner that is no t readilyremovable. Where supplementary color identificationof piping is used, it shall be in accordance with thegases and colors indicated i n CGA Pamphlet C-9,Standard olor Marking ompressed ylindersIntended for Medical as UseSee Table 13-1.1323 1 Piping sha ll be labeled by stenci ling oradhesive markers that identify the medical gas,support gas, or vacuum system and include:

1 The n ame of t he gas/vacuum s ys tem or thechemical symbol per NFPA 99 Table 5.1.11.2 The gas or vacuum system color code perNFPA 99 Table 5.1.11.3 Where positive-pressure gas piping systemsoperate at pressures other than the standard

gauge in NFPA 99 Table 5.1.11, the pipelabeling shall include t he ope ra ti ngpressure in add it io n to the n ame of t he gas.[NFPA 99 5.1.11.1.1] Pipe labels shall be located as follows:1 At intervals ofnot more than 20 ft 6,100 mm).2 At least once in or above every room.3 On both sides of walls or partitions penetratedby the piping.4 At least once in every story height traversed

by risers. [NFPA 99 5.1.11.1.2]1323 2 Shutoff valves shall be identified as follows:

1 The name or chemical symbol for thespecific medical gas or vacuum system.2 The room or areas served.3 A caution to not close or open valve exceptin emergency. [NFPA 99 5.1.11.2.1]

1323 3 Station outlets and inlets shall be identified asto the name or chemica l symbol for the specificmedical gas or vacuum provided. [NFPA 995.1.11.3.1]1323 4 The shutoff valves described in Sections1320.4, 1320.5, and 1320.6 shall be labeled to reflectthe rooms t ha t a re con trolled by such valves.Label ing shall be kept current fr om in itia lconstruction through acceptance. Valves shall belabeled in substance as follows:

In-line shutoff valves shall be labeled in substanceas follows:CAUTION

NAME OF MEDICAL GAS) VALVEDO NOT CLOSE EXCEPT IN EMERGENCY

THIS VALVE CONTROLS SUPPLY TO ...


13/88


Source valves shall be labeled in substance asfollows:SOURCE VALVE

FOR THE SOURCE NAME .Main line valves shall be labeled in substance asfollows:

MAIN LINE VALVE FOR THEGASIVACUUM NAME SERVING THE

NAME OF BUILDING .Riser valve s shall be labeled in substance asfollows:RISER FOR THE GASIVACUUM NAME

SERVING NAME OF THE AREA/BUILDINGSERVED BY THE PARTICULAR RISER .

Service valve s shall be labeled in substance asfollows:SERVICE VALVE FOR THE

GASIVACUUM NAME SERVINGNAME OF THE AREA/BUILDING

SERVED BY THE PARTICULAR VALVE .[NFPA 99 5.1.11.2.1]1324.0 Alarms All master, area, and local alarmsystems used for medical gas and vacuum systemsshall include the following:

1 Separate visual indicators for each conditionmonitored except as permitted for localalarms that are displayed on master alarmpanels.2 Visual indicators that remain in alarm untilthe situation that has caused the alarm isresolved.

3 A cancelable audible indication of eachalarm condition that produces a soundwith a minimum level of 80 dBA at 3 feet920mm .

4 A means to visually identify a lamp or LEDfailure.5 Visual and audible indica tion that the

wiring to an alarm init ia ting device isdisconnected.6 Labeling of each indicator, indicating theconditionmonitored.

7 Labeling of each alarm panel for its area ofsurveillance.8 Re-initiation of the audible signal if anotheralarm condition occurs while the audiblealarm is silenced.9 Power for master and area alarms from the

1323 4 325

life safety branch of the emergency electricalsystem as described in Chapter 4, ElectricalSystems.10 Power for local alarms, dew point sensors,and carbon monoxide sensors permitted tobe from the same essential electrical branch

as is used to power t he a ir compressorsystem.11 Wiring from switches o r sensors that is

supervised or protected as required bySection 517.30 C 3 of NFPA 70, NationalElectrical Code, for emergency system circuits.12 Assurance by the responsible authority ofthe facility that the labeling of alarms, whereroom numbers or designations are used, isaccurate and up-to-date.13 Provisions for automatic restart after a powerloss of 10 seconds e.g., during generator

startup without giving fa lse s igna ls orreqiriring manual reset. [NFPA 99 5.1.9.1 1 ,3 , 4 , 5 , 6 , 7 ]

1324.1 Functioning of all alarm components shall beverified in accordance with testing and monitoringrequirements of the manufacturer and the AuthorityHaving Jurisdiction.1325.0 Medical ir System Med ical aircompressors shall be installed in a well-litventilated, and clean location and shall be accessible.The locat ion shall be provided with drainagefacilities. The medical air compressor area shall belocated separately from medical gas cylinder systemsources and shall be readily accessible formaintenance.1325.1 Medical air compressors shall be sufficient toserve the peak calculated demand with the largestsingle compressor ou t of service. In no case shallthere be fewer than 2 two compressors. [NFPA 995.1.3.5.11.2]Medical air compressor systems shall consist of thefollowing:

1 Components complying with NFPA 995.1.3.5.4 through NFPA 99 5.1.3.5.10, arrangedper NFPA 99 5.1.3.5.11.

2 An automatic means to prevent backflowfrom all on-cycle compressors through alloff-cycle compressors.3 A manual shu toff valve to i so la te eachcompressor from the centrally piped systemand from other compressors for maintenanceorrepairwithout loss ofpressure in the system.4 Intake filter-mufflers of the dry type.5 Pressure relief valves set at 50 percent aboveline pressure.

235


14/88

325 1326 1

6 Pipingbetween the compressor and the sourceshutoff valve compatible with oxygen thatdoes not contribute to contaminant levels.[NFPA 99 5.1.3.5.3.2]7 Except as defined in NFPA 99 5.1.3.5.3.2 1)

through NFPA 99 5.1.3.5.3.2 6), materialsan d devices used between the medical airintake and the medical air source valve shallbe permitted to be of any design or construction appropriate for the service, as determinedby the manufacturer. [NFPA 99 5.1.3.5.3.2]

1325 2 The medical air compressors shall draw theira ir f rom a source of clean ai r located where nocontamination is anticipated from engine exhausts,fuel storage vents, medical-surgical vacuum systemdischarges, particulate matter, or odor of any type.[NFPA 99 5.1.3.5.13.1]1325 3 Compressor intake piping shall be hard-drawn seamless copper, and one of the following:

1 ASTM B 819, Standard Specification forSeamless Copper Tube for medical GasSystems, medical gas tube.2 ASTM B 88, Standard Specification forSeamless Copper Water Tube, water tube Type or L .3 ASTM B 280, Standard Specification for Seamless Copper Tubing for Air Conditioning andRefrigeration Field Service, 280ACR tube.[NFPA 99 5.1.3.5.13.4]

T he compr es so r air i nt ak e s hall be locatedoutdoors above roof level, at a minimum distance of10 feet 3,050 mm) from any door, window, exhaust,other intake or opening in the building and aminimum distance of 6,100 mm 20 feet) above theground. [NFPA 99 5.1.3.5.13.2]

an air source equal to or better than outside air e.g., air alr eady f il tered for us e in operating roomventilating systems) is available, it shall be permittedto be used for the medical air compressors with thefollowing provisions:1 This alternate source of supply air shall beavailable on a continuous 24-hours-per-day,7-days-per-week basis.2 Ventilating systems having fans with motorsor drive belts located in the air stream shall

not be used as a source ofmedical air intake.[NFPA 99 5.1.3.5.13.3]Air intakes for separate compressors shall be

permitted to be joined together to one commonintake where the following conditions are met:1 The common intake is sized to minimize

back pressure in accordance with themanufacturer s recortunendations

236

2 7 CALIFORNIA PLUMBING CODE2 Each compressor can be isolated by manual

or check valve, blind flange, or tube cap toprevent open inlet piping when compressorsare removed from service and consequentbackflow of room air i nt o the other compressor s). [NFPA 99 5.1.3.5.13.5]

325 3 Each medical air compressor shall havean isolation valve installed so that shutting off orfai lure of the largest unit will no t affect theoperation of the other unit s).

1325 4 Drains shall be ins ta ll ed on dryersaftercoolers, separators, and receivers.1325 5 Medical air receivers shall be provided withproper valves to allow the flow of compressed air toenter and exit out of separator receive ports duringnormal operation and all ow t he r ecei ver t o be bypassed during service, without shutting down themedical air system. [NFPA 99 5.1.3.5.11.4]1325 6 Medical Air Receivers Receivers formedical air shall meet the following requirements:1 Be made of corrosion-resistant materials orotherwise be made corrosion resistant.

2 Comply with Section VIII, Unfired PressureVessels, of the SM oiler and ressureVessel ode

3 Be equipped with a pressure-relief valve,automatic drain, manual drain, sight glass,and pressure indicator.

4 Be of a capacity sufficient to prevent thecompressor from short cycling. [NFPA 995.1.3.5.6]Piping within compressor systems upstreamof the source shutoff valve shall comply withSections 1316 and 1319, except that stainless steel

shall be permitted to be used as a pipingmaterial.1326 Medical Vacuum Pump System Thevacuum plant sha ll be ins ta ll ed in a well litventilated, and clean locationw ith ample accessibility.The location shall be provided with drainage facilities.The vacuum plant, when installed as a source, shall belocated separately from other medical vacuum systemsources an d shall be readily accessible formaintenance.1326 1 Medical surgical vacuum sources shallconsist of the following:

1 Two or more vacuum pumps sufficient toserve the peak calculated demand with thelargest single vacuum pump out of service.2 An automatic means to prevent backflowfrom anyon cycle vacuum pumps throughany off-cycle vacuum pumps.


15/88

HE LTH RE F ILITIES NDMEDI L G S ND V UUM SYSTEMS

3 A shutoff valve or other isolation means toi so la te e ac h vacuum p u m p from th ecentrally piped system an d other vacuumpumps for maintenance or repair withoutloss of vacuum in th e system. [NFPA 995.1.3.6.1.2 1 , 2 , 3 ]

. 4 A vacuum receiver.5 Piping between th e vacuum pump s),discharge s , receiver s , an d th e vacuumsource shutoff valve shall be in accordancewith 5.1.10.2, except that stainless, galvanized,or blacksteel pipe shallbe permitted to be used.6 Except as defined in NFPA 99 5.1.3.6.1.2 1

through NFPA 99 5.1.3.6.1.2 5 , materialsan d devices u s ed b et we en th e medicalvacuum exhaust an d the medical vacuumsource sp.all be permitted to be of any designor construction appropriate for the service,as determined by the manufacturer. [NFPA995.1.3.6.1.2 1 , 2 , 3 , 4 , 5 , 6 ]1326 1 1 Additional pumps shall automatically

activate when th e pumps i n o pe ra ti on a reincapable of a de qu at el y m ai nt ai ni ng t herequired vacuum.

Automatic or manual alternation of pumpsshall allow division of operating time. automatic alternation of pumps is not provided,th e facility staff shall arrange a schedule formanual alternation. [NFPA 99 5.1.3.6.6.1,5.1.3.6.6.2]

1326 2 The medical-surgical vacuum pumps shallexhaust in a manner an d location that will minimizethe hazards of noise an d contamination to the facilityan d its environment.The exhaust shall be located as follows:

1 Outdoors.2 At least 10 feet 3,050 mm from any door,

window, air i nt ak e, o r o th er o pe ni ng s inbuildings.3 At a level different from air intakes.4 Where prevailing winds, adjacent buildings,topography, or other influences that would

no t divert the exhaust into occupied areas orprevent dispersion of the exhaust.The end of the exhaust shall be turned downan d screened or otherwise be protected againstthe entry of vermin, debris, or precipitation by

screening fabricated or composed of a noncbrrodingmaterial.Th e ex hau st sh al l be piped of materials

approved for medical-surgical vacuum pipingunder Section 1316.3 Vacuum t u e s ~ .The exhaust shall be free of dips an d loops

that might trap condensate or oil. Where such

1326.1 -1327.1lo w points are unavoidable, a drip le g an dvalved drain s ha ll b e installed. [NFPA 995.1.3.6.7.1 - .5] 326 2 Vacuum exhausts from multiplepumps shall be permitted to be joined togetherto one common exhaust w he re t he followingconditions are met:1 The common exhaust is sized tominimize back-pressure in accordance

with the pump manufacturer s recommendatiops.2 Each pump can be isolated by manualor check valve, blind flange, or tube cap

to prevent open exhaust piping whenpumps are removed fo r service an dconsequent flow of exhaust air into.theroom. [NFPA 99 5.1.3.6.7.6] 326 3 Receivers fo r vacuum s ha ll m ee t th efollowing requirements:

1 Be made of ferrous a n d / or nonferrousmaterials.2 Comply with Section VIII, Unfired PressureVessels, of th e SME oiler and PressureVessel ode3 Be capable ofwithstanding a gauge pressureof 415 kPa 60 psi an d 29.9 inch 760 mmgauge HgV.

4 Be equipped with a manual drain.5 Be of a capacity based on the technology ofthe pumps. [NFPA 99 5.1.3.6.3]

1326 4 Piping between vacuum pumps, discharges,receivers, an d the vacuum main line valve shall b e i naccordance with Section 1316.1, except that steel pipeshall be permitted to be either black or galvanized.1326 5 Drains shall be installed an d terminate in anapproved location.1327 Testing and Inspection1327 1 Inspection and testing shall be performed onall-new piped gas systems, additions, renovations,temporary installations, or repaired systems, toensure the facility, by a documented procedure, thatall applicable provisions of this document have beenadhered to an d system integrity ha s been achievedor maintained. [NFPA 99 5.1.12.1.1.]

1327 1 1 Tests an d inspections required by thissection shall no t be interpreted to conflict withthe requirements of NFPA 99 Standard for Health areFacilities Final certification or verificationshall require t he c om pl et io n o f all tests an dinspections required by Sections 4-3.4.1.1, 43.4.1.2, an d 4-3.4..1.3 of NFPA 99 Standard forHealth areFacilities For re qu i re men t s o f t heportions of medical gas an d medical vacuum

23 7


16/88

1327 1 1327 9systems testing and inspection not addressed inthis chapter or medical gas and medical vacuumsystems testing and inspection beyond the scopeof this chapter, refer to NFPA 99 t nd rd forHealth areFacilities

327 2 All systems that are breached an d com-ponents that are subject to additions, renovations, orreplacement e.g., new gas sources: bulk, manifolds,compressors, dryers, alarms shall be inspected andappropriate ly tested. [NFPA 995.1.12.1.3]

1327 2 1 Systems shall be deemed breached atthe point of pipeline intrusion by physicalseparation or by system component removalreplacement, or addition.

Breached portions of the systems subject toinspection and testing shall be confined to onlythe specific altered zone and components in theimmediate zone or area that is locatedupstream for vacuum systems and down-stream for pressure gases at the point or area ofintrusion. [NFPA 995.1.12.1.4,5.1.12.1.5]

1327 3 Advance Notice It shall be the duty of theperson doing the work authorized by the permit tonotify the Authority Having Jurisdiction, orally or inwriting, that said work is ready for inspection. Suchnotification shall be given no t less than twenty-four24 hours before the work is to be inspected.1327 4 Responsibility The equipment material,and labor necessary for inspection and testing shallbe furnished by the permit holder or by the personwho is requiring the inspection.1327 5 Testing The test shall be conducted in thepresence of the Authority Having Jurisdiction or aduly appointed representative. 327 6 Retesting the Authori ty HavingJurisdiction finds that the work does not pass tests,necessary corrections shall be made and the workshall then be resubmitted for test or inspection.1327 7 Initial Pressure Test iped as SystemsBefore attachment of system components e.g.,pressure-actuating switches for alarms, manifolds,pressure gauges, or pressure-relief valves , but afterinstallation of the station outlets and inlets, with testcaps in place, each section of the piping system shallbe subjected to a test pressure of one and a one-half1-1/2 times the working pressure [minimum onehundred-fifty 150 psig 1 Mpa gauge ] with oil-freedry nitrogen. This test pressure shall be maintaineduntil each joint has been examined for leakage bymeans of soapy water or other equally effectivemeans of leak detection safe for use with oxygen. Thesource shutoff valve shall be closed. Leaks, if any,shall be located, repaired, and retested in accordancewith this paragraph. [NFPA 99 5.1.12.2.3.7]

238

2 7 CALIFORNIA PLUMBING CODE1327 8_Cross Connection Test Piped GasSystems I t sha ll be determined that no crossconnections exist between the various medical gasand vacuum piping systems. [NFPA 99 5.1.12.2.4]

All piping systems shall be reduced toatmospheric pressure. [NFPA 995.1.12.2.4.1]Sources of test gas shall be disconnected from allpiping systems except for the one systembeing tested.[NFPA 99 5.1.12.2.4.2]The system under test shall be charged withoil-free, dry nitrogen NF to a gauge pressure of

50 ps i 345 kPa . [NFPA 99 5.1.12.2.4.3]After the installation of the individual faceplates

with appropriate adapters matching outlet/inletlabels, each individual outlet/inlet in each installedmedical gas and vacuum piping system shall bechecked to determine that the test gas is beingdispensed only from the piping system being tested.[NFPA 99 5.1.12.2.4.4]

327 8 The source of test gas shall bedisconnected and the sys tem tes ted shall bereduced to atmospheric pressure. The crossconnect ion tes t referenced in NFPA 995.1.12.2.4 shall be repeated for each installedmedical gas and vacuum piping system. .. . .[NFPA 995.1.12.2.4.1,5.1.12.2.4.5]1327 8 2 Where a medical vacuum system isinstalled the cross connection testing shallinclude that piped vacuum system with allmedical gas-piping systems.1327 8 3 All medical-surgical vacuum systemsshall be in operation so that these vacuumsystems are tested at the same time the medicalgas systems are tested. The proper labeling andidentification of system outletslinlets shall beconfirmed during t hese t es ts . [NFPA 995.1.12.2.4.6]

1327 9 Final Testing Standing Pressure Test -iped as Systems After successful completion ofthe initial pressure tests under Section 1327.7, medicalgas distribution piping shall be subject to a standingpressure test. [NFPA 995.1.12.2.6]Tests shall be conducted after the finalinstallation of station outlet valve bodies, face plates,

and other distribution system components e.g.,pressure alarm devices, pressure indicators linepressure relief valves, manufactured assemblies,hose, etc. . [NFPA 99 5.1.12.2.6.1]

The source valve shall be closed during this test.[NFPA 99 5.1.12.2.6.2]The piping systems shall be subjected to a 24-hourstanding pressure test using oil-free, dry nitrogen NF.[NFPA 99 5.1.12.2.6.3]


17/88


Test pressures shall be 20 percent above thenormal system operating line pressure. [NFPA 995.1.12.2.6.4]

1327 9 1 After the piping system is filled withtest gas, the supply valve and all outlets shall beclosed and the source of test gas disconnected.Tests shall be conducted after the finalinstallation of station outlet valve bodies, faceplates, and other distribution systemcomponents e.g., pressure alarm devices,pressure indicators, line pressu,re-relief valves,manufactured assemblies, hose, etc. .

The sourcevalve shall be closed during this test.The piping systems shall be subjected to a24-hour standing pressure test using oil-free,

dry nitrogen NF.Test pressures shall be 20 percent abovethe normal system operating line pressure.Leaks, if any, shall be located, repaired if

permitted , or replaced i f required , an dretested. [NFPA 99 5.1.12.2.6.1-5.1.12.2.6.6]At the conclusion of the tests, there shall be

no change in the test pressure other than thatattributed to changes of ambient temperature.[NFPA 99 5.1.12.2.6.5]1327 10 Initial Pressure Test Piped VacuumSystems Each section of the piping in medical gasand vacuum systems shall be pressure-tested. [NFPA995.1.12.2.3.1]Initial pressure tests shall be conducted as follows:

1) After installation of station outlets/inletsrough-in assemblies. Test caps sha ll bepermitted to be used.

2) Prior to the installation of components of thedistribution piping system that would bedamaged by the test pressure e.g.,pressure/vacuum alarm devices, pressure/vacuum indicators, line pressure-reliefvalves, manufactured assemblies withflexible hose, etc. . [NFPA 99 5.1.12.2.3.2]The source shutoff valve shall remain closedduring these tests. [NFPA 99 5.1.12.2.3.3]The test pressure for pressure gases shall be1.5 times the system working pressure but

_not less than a gauge press:ure_of 15Q psi1,035 kPa . [NFPA 99 5.1.12.2.3.4]The test pressure for vacuum shall be notless than a gauge pressure of 60 ps i 415 kPa .[NFPA 99 5.1.12.2.3.5]The test pressure shall be maintained until

each joint has been examined for leakage by.means of soapy water or other equally effectivemeans of leak detection that ,is safe for use withoxygen. [NFPA 99 5.1.12.2.3.6]

1327.9 -1327.13Leaks, if any, shall be located, repaired ifpermitted , replaced if required , and retested.[NFPA 99 5.1.12.2.3.7]

1327 11 Standing Pressure Test Piped VacuumSystems After successful completion of the initialpressure tests under Section 1327.10, vacuumdistribution piping shall be subjected to a standingvacuum test. [NFPA 99 5.1.12.2.7]

Tests shall be conducted after installation of allcomponents of the vacuum system. [NFPA 995.1.12.2.7.1]

The piping systems shall be sub jected to a 24hour standing vacuum test. [NFPA 99 5.1.12.2.7.2]Test pressure shall be between 12 inch 300 mm . . . . .. gauge HgV and full vacuum. [NFPA 99 5.1.12.2.7.3]

During the test, the source of test vacuum shallbe disconnected from the piping system. [NFPA 995.1.12.2.7.4]

At the conclusion of the test, there shall be nochange in the vacuum other than tha t attributed tochanges of ambient temperature, as permitted in thefollowing: [NFPA 99 5.1.12.2.7.5]Test vacuum changes due to expansion orcontraction shall be permitted to be determined by

means of the following pressure temperaturerelationship:1) The calculated final absolute pressure equals

the initial absolute pressure times the finalabsolute temperature, divided by the initialabsolute temperature.2) Absolute pressure is the gauge pressurereading plus 14.7 ps i 101.4 kPa .3) Absolute temperature is the temperaturereading plus 460F 238C .4) The final allowable gauge pressure readingequals the final allowable absolute pressure

minus a gauge pressure of 14.7 ps i 101.4kPa . [NFPA 99 5.1.12.2.7.6]Leaks, if any, shall be located, repaired if permitted ,or replaced if required , and retested. [N FPA 995.1.12.2.7.7] 327 2 Corrections Not ices o f correction orviolation shall be written by the Authority HavingJurisdiction and may be posted at the site of the workor mailed or del ivered to th e permittee or anauthorized representat ive. Refusal or fai lure tocomply with any such notice or order within ten 10)days of receipt thereof shall be considered a violationof this code, and shall be subject to the penalties setforth elsewhere in this code for violations.1327 13 Approval Upon satisfactory completion ofal l tests and certification of the medical gas and

239


18/88

1327 13 1328 4medical vacuum systems a certificate of approvalshall be issued by the Authority Having Jurisdictionto the permittee.1327 14 Covering or se No medical gas or medicalvacuum system or part thereof shall be coveredconcealed or put into use until it has been testedinspected and accepted as required in this code.1327 15 Uncovering Any medical gas and vacuumsystem or part thereof that is covered or concealedbefore testing and inspected as required in this codeshall be uncovered for inspection after notice touncover the work has been issued to the permittee orhi s authorized representative by the AuthorityHaving Jurisdiction.1328 System Certification1328 1 Prior to any medical gas system being placedin service each and every system shall be certifiedas described in Section 328 2

1328 1 1 Verification tests shall be performedonly after all tests required in Section 1327.0Installer Performed Tests have been completed.[NFPA 99 5.1.12.3.1.1]

Testing s ha ll be conducted by a partytechnically competent an d experienced in thefield of medical gas and vacuum pipeline testingand meeting the requirements of ANSI/ASSEStandard 6030 Medical Gas Verifiers ProfessionalualificationsStandard [NFPA 99 5.1.12.3.1.3]

Testing shall be performed by a party otherthan th e install ing contractor [NFPA 995.1.12.3.1.4]When systems have been installed by in-house personnel testing shall be permitted bypersonnel of that organization who meet therequirements of t hi s sec ti on [NFPA 995.1.12.3.1.5]

1328 2 Certification tests verified and attested to bythe certification agency shall include the following:1328 2 1 Verifying com pliance w ith th einstallation requirements.1328 2 2 Testing and checking for leakagecorrect zoning and identification of controlvalves.1328 2 3 Checking for identification andlabeling of pipelines station outlets and controlvalves.1328 2 4 Testing for cross connection flow ratesystem pressure drop and system performance.1328 2 5 Functional testing of pressure reliefvalves and safety valves.1328 2 6 Functional testing of al l sources of

24

2 7 CALIFORNIA PLUMBING CODEsupply.1328 2 7 Functional testing of alarm systemsincluding accuracy of system components.1328 2 8 Purge flushing of system and fillingwith specific source gases.1328 2 9 Testing for purity and cleanliness ofsource gases.1328 2 1 Testing for specific gas identity at eachstation outlet.

1328 3 The inspection and testing reports shall besubmitted directly to the party that contracted for thetesting who shall submit the report through channelsto the responsible facility authority and any others thatare required. [NFPA 99 5 2 6]Reports shall contain detailed listings of allfindings and results. [NFPA 99 5.1.12.1.7]

1328 4 A report that includes at least the specifici tems mentioned in Section 1328.2 and a ll o therinformation required by NFPA 99 Standard for Health areacilities shall be delivered to the AuthorityHavingJurisdiction prior to acceptance of the system.


19/88


20/88

Table 13 2 Table 13 3TABLE 132

Minimum Flow Rates

2007 CALIFORNIA PLUMBING O E

Oxygen 71 CFM pe r outlet 20 LPM)Nitrous Oxide 71 CFM pe r outlet 20 LPM)Medical Compressed Air 71 CFM pe r outlet 20 LPM)Nitrogen 15 CFM 0.42 m 3/min free air pe r outletVacuum 1 SCFM 0.03 sm3/min per inlefCarbon Dioxide 71 CFM pe r outlet 20 LPM)Helium 71 CFM pe r outlet 20 LPM)

Any room designed for a permanently located respiratory ventilator or anesthesia machine shall have anoutlet capable of a flow rate of 180 LPM 6.36 CFM) at the station outlet.For testing and certification purposes individual station inlets shall be capable of a f low rate of 3 SCFM,while maintaining a system pressure of no t less than 12 inches 305 mm at the nearest adjacent vacuuminlet.

TABLE 13 3Minimum Outlets lnlets per Station

Location Oxygen Medical Medical Nitrous Nitrogen Helium CarbonVacuum Air Oxide Dioxide

Patient rooms formedical/surgical, l/bed l/bed l/bedobstetrics, and pediatricsExamination/treahnentfor nursing units l/bed l/bedIntensive care all) 3/bed 3/bed 2/bedNursery 2/bed 2/bed l /bedGeneral operating rooms 2/room 3/room4 2/room 1/room 1/roomCystoscopic and invasive 2/room 3/room4 2/roomspecial proceduresRecovery delivery and 2/bed 2/bed l /bedlabor/ delivery/ 2/room 3/room4 1/roomrecovery rooms2Labor rooms l/bed l/bed l/bedFirst aid and emergency l /bed 1/bed4 l /bedtreahnenPAutopsy l /s tat ion l/ st at io nAnesthesiaworkroom l/station l/station Includes pediatric nursery.2 Includes obstetric recovery.3 Emergency trauma rooms used for surgical procedures shall be classified as general operating rooms.4 Vacuum inlets required are in addition to any inlets used as part of a scavenging system for removal ofanesthetizing gases.

242


21/88


TABLE 13-4System Sizing - Flow Requirements for Station InietlOutlet1

Table 13-4- Table 13-5

1 Flow rates of station inlets outlets per Table 13-2.2 The minimum system flow is the average inlet /out let flow times the number of station inlets outlets times the diversitypercentage.

TABLE 13-5Outlet Rating for Vacuum Piping Systems

Number ofInleVOutlet TerminalUnits per Facility1 1011-2526-5051-100

Diversity Percentageof Average Flow perInleVOutlet Terminal Units100755050

Minimum PermissibleSystem FlowSCFM liters/minute)All PressurizedMedical Gas Systems

Actual Demand7.0 200)13.1 375)17.5 500)

VacuumSystemsSeeTable13-5

Free-Air Allowance, Zone AllowancesExpressed as CFM LPM) Corridors-Risersat 1 Atmosphere Main Supply Line-Valves

Simultaneous Air to BeLocation of Medical-Surgical Usage, TransportedVacuum Outlets Per Room Per Outlet Factor Percent CFM LPM)*Operating RoomsMajor A Radical, Open Heart) 3.5 99.1 - 100 3.5 99.1Organ Transplant) 3.5 99.1 . 100 3.5 99.1Radical Thoracic) 3.5 99.1 100 3.5 99.1Major IB All Other Major ORs 2.0 56.6 - 100 2.0 56.6Minor 1.0 28.3 100 1.0 28.3)

Delivery Rooms 1.0 28.3 100 1.0 28.3)Recovery Rooms Post-Anesthesia) andIntensive Care Units a minimumof 2 outlets perbed eachsuch department)1st outlet at each bed - 3.0 85.0) 50 1.5 42.5)2nd outlet at eachbed - 1.0 28.3 50 0.5 14.23rd outlet at each bed - 1.0 28.3) 10 0.1 2.8All others at each bed - 1.0 28.3) 10 0.1 2.8

EmergencyRooms - 1.0 28.3) 100 1.0 28.3)Patient RoomsSurgical - 1.0 28.3) 50 0.5 14.2)Medical - 1.0 28.3 10 0.1 2.8Nurseries 1.0 28.3) 10 0.1 2.8Treatment and ExaminingRooms - 0.5 4.2) 10 0.05 1.4

AutopsyArea 2.0 56.6) 20 0.4 11.3)InhalationTherapy, CentralSupply and Instructional Areas - 1.0 28.3) 10 0.1 2.8*Free air at 1 atmosphere

4


22/88

Table 13-6 - Table 13-7 2007 CALIFORNIA PLUMBING CODETABLE 13-6

Size of GasNacuum PipingMaximum Delivery Capacity3 in SCFM LPM

Medical Gas Pipe Size Length of Piping in Feet m 1System Inch2 100 30 250 76 500 152 750 228 1,000 304

1/2 15.0 425 10.6 300 7.4 209 5.9 167 5.1 144Oxygen 3/4 40.0 1,133 28.3 801 19.6 555 15.7 445 13.3 3771 50.0 1,416 50.0 1,416 40.2 1,138 32.2 912 27.7 784

1/2 15.0 425 9.5 269 6.5 184 5.3 150 4.5 127Nitrous Oxide 3/4 30.0 849 24.7 699 17.1 484 13.7 388 11.7 3311 40.0 1,113 40.0 1,133 34.7 983 28.2 7,98 24.3 688

1/2 18.1 512 11.1 314 7.8 221 6.3 177 5.3 151Medical Air 3/4 40.0 1,133 29.9 847 21.0 595 16.5 467 14.1 3991 50.0 1,416 50.0 1,416 42.1 1,192 35.8 1,013 29.2 826

1 22.8 645 13.7 388 9.5 269 7.6 215 6.5 184Vacuum 1-1/4 40.1 1,135 24.5 694 16.7 473 13.3 377 11.2 3171-1/2 63.7 1,804 38.9 1,101 26.8 759 21.1 600 17.9 507

2 132.7 3,758 81.4 2,305 56.0 1,586 45.0 1,274 38.3 1,0841/2 25.0 708 25.0 708 25.0 708 23.8 674 20.6 583

Nitrogen 3/4 60.0 1,699 60.0 1,699 60.0 1,699 60.0 1,699 54.2 1,5351 110.0 3,115 110.0 3,115 110.0 3,115 110.0 3,115 110.0 3,1151 Lengthof pipingincludes a 30 allowance for fittings.2 One-halfinch 12.7 mm diameterpipe is the minimum sizeallowedin medical gas systems.3 Based on the following maximumpressure drops:

Oxygen, nitrous oxide, and medical air - 5 psig 10 in. HgVacuum -1.96 psig 4 in. HgNitrogen- 20 psig 41 in. Hg

TABLE 137Maximum Pipe Support Spacing

NPS 1/4NPS 3/8NPS 1/2NPS 3/4NPS 1

NPS 1-1/4NPS 1-1/2

Pipe SizeDN8DN10DN15DN20DN25DN32DN40

an d largerVertical risers, all sizesEvery floor but no t to exceed:[NFPA 99 5.1.10.6.4.1]

244

Hanger Spacingmm ft.

3 /8 in. O.D. 1,520 51 /2 in. O.D. 1,830 65 /8 in. O.D 1,830 67 /8 in. 0 0 2,130 71-1/8 in. O.D. 2,440 8

1-3/8 in. O.D. 2,740 91-5/8 in. O.D. 3,050 10

4,570 15


23/88

CHAPTER 14MANDATORY REFERENCED STANDARDS

TABLE 4Standards for Materials Equipment Joints and Connections

Where more than one standard has been listed for the same material or methodthe relevant portions of all such standards shall apply

Standard Number Standard Title ApplicationAHAM DW-1-2004 Household Electric Dishwashers AppliancesAHAM DW-2PR-92 P lumbing Requirements for Household Dishwashers AppliancesAHAM FWD-1-92 Food Waste Disposers Appliances

I AHAM FWD-2PR-89 Household Food Waste Disposer Units Appliances ANSIA13.1-96 R03 Scheme for the Identification of Piping Systems PipingANSI A21.10-2003 Ductile-Iron and Gray-Iron Fittings, 3 in. through 48 in.75 mm through 1,200 mm , for Water and Other Liquidssame as AWWACllO Piping, FerrousANSI A21.ll-2000 Rubber-GasketJoints for Ductile-Iron Pressure Pipe andFittings same as AWWA C ll Piping, FerrousANSI A21.51-2002 Ductile-IronPipe, CentrifugallyCast, for Water same asAWWAC151 Piping, Ferrous

ANSI A21.53-2000 Ductile-IronCompact Fittings,3 in. through 24 in.76 mm through 610 mm and 54 in. through64 in. 1400 mm through 1600 mm , for Water Service

same as AWWA C 53 Piping, FerrousANSI All8.10-99 Load, Bearing, Bonded, WaterproofMembranes for

Thin-Set Ceramic Tile and DimensionStone Instal lations FixturesANSI A137.1-88 Ceramic Tile MiscellaneousANSI B2.1-90 Pipe Threads ExceptDryseal replaced by ASME B1.20.1-98 JointsANSI/CSA LC 3-2000 Appliance Stands and Drain Pans MiscellaneousANSI All7.1-2003 Accessible and Usable Buildings and Facilities MiscellaneousANSI Z4.1-95 Sanitation in Places ofEmployment Table 4-1 Note 6 MiscellaneousANSI Z21.5.1a-2003 Gas Clothes Dryers Type 1 Clothes Dryers Fuel GasANSI Z21.5.2a-2003 Gas Clothes Dryers Type 2 Clothes Dryers Fuel Gas

5


24/88

Table 4 7 CALIFORNIA PLUMBING O E

Standard Number Standard Title ApplicationANSI 221.10.1-2004 GasWaterH eaters - Volume I - StorageWater Heaters

with InputRatings of 75 000 Btu per our or Less 22 kW AppliancesANSI 221.10.3-2004 Gas WaterHeaters - Volume III- Storage with Input

Ratings Above 75 000 Btu per ourCirculating andInstantaneous Water Heaters AppliancesANSI 221.12b-94 Draft oods AppliancesANSI 221.13-2004 Gas-Fired Low-Pressure Steam an d Hot-Water Boilers AppliancesANSI 221.15-97 Manually Operated Gas Valves for Appliances

Appliance Connector Valves and Hose End Valves ValvesANSI 221.22-2000 ReliefValves f or Hot-Water S upply Systems ValvesANSI 221.24-2001 Connectors for Gas Appliances AppliancesANSI 221.41-2003 Quick-Disconnect Devices for Use with Gas Fuel Appliances

CSA 6.9-2003 JointsANSI 221.47b-2003 Gas-Fired Central Furnaces FuelGasANSI 221.56-2001 Gas-Fired Pool Heaters SwimmingPools

CSA 4.7-2001 and Spas

ANSI 221.69a-2003 Connectors for Movable GasA ppliances AppliancesCSA 6.16-2003

ANSI 221.80-2003 Line Pressure Regulators Fuel GasCSA 6.22-M2003

ANSI 221.81-98 Cylinder Connection Devices Fuel GasCSA 6.25-M98

ANSI 221.86-2004 Vented Gas-Fired Space-Heating Appliances AppliancesCSA 2.32-2004

ANSI 234.1-93 Certification - Third Par ty Certification Programs for CertificationProducts Processes and ServicesANSI 283.11-2002 Gas Food Service Equipment Fuel GasANSI 2124.1-95 Plastic Bathtub Units FixturesANSI 2124.2-95 Plastic Shower Units FixturesANSI 2124.3-95 Plastic Lavatories FixturesANSI 2124.4-96 Plastic Water Closet Bowls and Tanks Fixtures

6


25/88

MANDATORY REFERENCED STANDARDS Table 4

Standard Number Standard Title ApplicationANSI 2124.5-97 Plastic Toilet Water Closet Seats FixturesANSI 2124.6-97 Plastic Sinks FixturesANSI 2124.7-97 Prefabricated Plastic Spa Shells FixturesANSI 2124.8-90 Plastic Bathtub Liners FixturesI PMO ANSI 2124.9-2004 Plast ic Urinal Fixtures Note 1 FixturesANSI 2223.1-2002 National Fuel GasCode same asNFPA 54 Fuel GasISEA2358.1-2004 Emergency Eyewash and Shower Equipment MiscellaneousARI 1010-2002 Drinking Fountains and Self-Contained,MechanicallyRefrigerated Drinking Water Coolers AppliancesASCE25-99 Earthquake Actuated Automatic Gas Shutoff Devices Fuel GasASHRAE 90.1-2004 Energy Standard for Buildings Except Low-Rise MiscellaneousResidential BuildingsASME A112.1.2-2004 Air Gaps in PlumbingSystems FittingsASME A112.1.3-2000 Air Gap Fittings for Use with Plumbing Fixtures, Appliances, Fixtures

and AppurtenancesASME A112.3.1-93 Stainless Steel Drainage Systems for Sanitary, Storm, and Piping, Ferrous

Chemical Applications, Above and Below Ground Note 1ASME A112.3.4-2000 R04 Macerating Toilet Systems and e l t ~ d Components FixturesASME A112.4.1-93 R02 Water Heater ReliefValve Drain Tubes AppliancesASME A112.4.2-2003 Water ClosetPersonal Hygiene Devices FixturesASME A112.4.3-99 R04 Plastic Fittings for Connecting Water Closets to the PipingSanitaryDrainage SystemASME A112.4.7-2002 Point of Use and Branch Water Submetering Systems MiscellaneousASME A112.6.1M-97 R02 Floor-Affixed Supports for Off-the-Floor Plumbing Fixtures Fixturesfor Public UseASME A112.6.2-2000 ROO Framing-AffixedSupports for Off-the-Floor Plumbing Fixtures

FixturesASME A112.6.3-2001 Floor and TrenchDrains DWV ComponentsASME A112.6.4-2003 Roof, Deck, and Balcony Drains DWV ComponentsASME A112.6.7-2001 Enameled and Epoxy Coated Cast Iron and PVC Plastic Fixtures

Sanitary Floor Sinks

7


26/88


27/88

MANDATORY REFERENCED STANDARDS Table 4

Standard Title ApplicationQualification of Installers ofH ighPurity Systems SwimmingPools SpasQualification of Installers ofFirestop Systems and Devices for CertificationPiping SystemsHydrants for Utility and Maintenance Use Note 1 ValvesCleanouts Note 1 DWV ComponentsPipe Threads, General Purpose, Inch JointsDryseal Pipe Threads, Inch JointsCast-Iron PipeFlanges and FlangedFittings, Classes 25 Piping, Ferrous125,250, and 800Malleable-Iron Threaded Fittings Piping, FerrousGray Iron Threaded Fittings Includes Revision Services Piping, FerrousPipe Flanges n Flanged Fittings JointsIron Threaded Drainage Fittings Note 1 Piping, FerrousCast BronzeThreaded Fittings, Classes 125 n 250 Piping, Copper AlloyCast Copper Alloy Solder Joint Pressure Fittings Note 1 Piping, CopperAlloyNonmetallic Flat Gaskets for Pipe Flanges JointsWrought Copper and CopperAlloySolderJoint Pressure Piping, CopperAlloyFittings AlloyCastCopper Alloy SolderJoint Drainage Fittings - DWV Piping ,Copper AlloyCast Copper Alloy Pipe Flanges and FlangedF ittings Piping, Copper AlloyCastCopper AlloyF ittings for Flared Copper Tubes Piping, Copper AlloyWrought Copper and Wrought CopperAlloy SolderJoint Piping ,CopperAlloy

Drainage Fittings-DWV Alloy Note 1ManuallyOperated Metallic Gas Valves for

health care facilities and medical gas and vacuum systems

Documents