-report of committee on - nfpa · 77. amend table 2-1 by changing the date of the asme code from...

LPG--1 C O M M I T T E E P E R S O N N E L C O M M I T T E E ON L I Q U E F I E D P E T R O L E U M G A S E S LPG-2

-Report of Committee on Liquefied Petroleum Gases

-Gonnor L. Adams , Chairman • Mechanical Inspections City of Miami Bldg. Dept.

W. L. Walls, 8ecretar~t National Fire Protection Association

J . A : Cederval l , Underwriters Labora- toriee Inc.

J o h n J. Crowe, Compressed Gas Associa- tion, Inc.

J o h n A. Davenpor t , Industrial Risk In- . BUrsrs

Wi l bu rn R. Dodge, Fire Marshals Assn. of North America

Wi l l i am H. Doyle, Simsbury, CT

Ho~'~rd J . H°.o.lgeo, Jr . , U.S. Na~enaI Park Service

Russe l E. Hes ton , Grinnell Mutual Re- iasur~nce ~ompany

H. T. Jones , Ministry of Consumer & Com- . mereial Relations (Ontario, Canada)

Peter H. K' romayer , American Iron & Steel Institute

J o h n Kukucka , National LP-Gns Associ- ation

Donald Maddock, Fire Equipment Manu- facturers Assn.

J o h n T. M c K e n n a , Jr . , American Gas Assn.

E . No Proudfoot , NFPA Industrial Fire Protection Section

H e n r y C. Scuote~uazza, Factory Mutual Research Corp.

F. E. Sel im, American Petroleum Institute E. C. Somer , American Petroleum Institute J a m e s E. S tockton, Fire Marshals Assn. of

North America H. Emer so n T h o m ~ s , National LF-Gas

Assn. R. R. Wel l ington, National LP-Gas Assn.

• J. He rbe r t Wlt te , Gas Vent Institute • Rober t B. Zie~ler, American Insurance Assn.

tNonvoting

Al te rna tes

A. E. CAchelli, American Iron & Steel Inst . (Alternate to P. H. K r o m a y e r ) ~

C. E. Deerin~, American Petroleum Inst. (Alternate to F. E. Selim & E. Sommer)

• Wal te r H. Johnson , National LP-Gas • Assn. (Alternate to J. Kukucka, H. E.

Thomas, R. Wellington) N o r m a n O. Nobbe, American Insurance

Assn. (Alternate to R. B. Ziegler)

Edwin A. Olaen, Compressed Gas Assn., Inc. (Alternate to J. J. Crowe)

T. E. Perkins , National LP-Gas Assn. (Alternate to J. .Kukucka, H. E. Thomas, R. Wellington)

F r a n k E. R a d e m a c h e r , Industrial Risk In- surers (Alternate to J. A. Davenport)

R o b e r t Warnock , Fire Equipment Mfrs. Assn. (Alternate to D. Macldock)

Nonvot ing

L. L~ Bergonla,: Industrial Truck Assn. G l e n n E. G a r d n e r , U.S. Occupational J o h n B. Ferguson, U.S. Occupational Safety Safety & Health Administration

& Health Administration (Alternate to G. E. Gardner) H . V . Keepers, Dallas, TX

Subcommittee on Utility'Gas Plants

J. T. McKenna , Chairman Boston Gas Company

W. L. Walls, Secretarlt National Fire Protection Association

. C . L . A d a m s , City of Miami Bldg. Dept. ~ H. C. Scuoteguazza , Factory Mutual Re- (ex-officio) search Corp.

I . 'V . .LaFave , Chicago Bridge and Iron z R. E. Sherwood, Industrial Risk Insurers Company "H. E. T h o m a s , Westfield, NJ

Wal ter L. Nor r ing ton , Smith and Norring- L . R . Welch, Texas Eastern Transportation ton Engineering Corp. Corp.

Thia list represents the membership at the time the Committee wa~ balloted on the text of this edition. Since that time, chanOes ~n the membership malt have occurred.

The Report of the Committee on Liquefied Petroleum Gases is in two parts.

Part I of the report proposes amendments to NFPA_58-1976, Standard for the Storage .and Handling of Liquefied Petroleum Gases.

Par t I of the report has been submitted to letter ballot of the Committee _on Liquefied Petroleum Gases which consists of 22 voting members. 79 members voted affrmatively. : Mr. Kromayer voted negatively because he

believes that new Par. 2107. (Item 14 in the report) permits unnecessary "bypassing" of national consensus standards for LP-Gas container design and fabrication. Messrs. Crowe and Maddock did not return their ballots.

Part I I of the report proposes amendments to NFPA 59-1976, • Standard for the Storage and Handling of Liquefied Petroleum • Gases at Utility Gas Plants.

Par t I I of the report has been submitted to letter ballot of the Committee on Liquefied Petroleum Gases which consists of 22 voting members. 20

~ members voted affirmatively. Messrs. Crowe and Maddock did not return the# ballots.

trot O t ~

58-1 AMENDMENTS TO NFPA 58

Part I

Proposed Amendments to the Standard for the Storage and Handling of

Liquefied Petroleum Gases

NFPA 58-1976

L Amend Section 12 as follows:

12. A C C E P T A N C E O F E Q U I P M E N T A N D S Y S T E M S

120. Method of Acceptance

1200. Systems, or componen t s assembled to make up systems, I shall be app roved (See Section 16, A P P R O V E D ) as specified

in T a b l e 1-1.

1201. Accep tance appl ies to the ............ remainder unchanged.

2. Amend the asterisked note to Table 1-1 by deleting " l i s t ed" in the first line and changing " l i s t ed" to " a p p r o v e d " in the third line.

3. Amend Footnote 2 to 1300 by changing " a na t iona l ly recognized" to " a n a p p r o v e d " in the second sentence, amending the third sentence to read "Expe r i ence has shown tha t ethyl m e r c a p t a n in the ra t io of 1.0 p o u n d per 10,000 gallons Of l iquid LP-Gas has been recognized as an effective odo ran t , " and by adding a new Jourth sentence and note to read as follows:

• "Research* on odorants has shown that thiophane (tetrahydrothiophene) in a ratio of at least 6.4 pounds per 10,000 gallons of liquid LP-Gas may satisfy the requirements of 1300."

*"A New Look at Odorization Levels for Propane Gas," BERC/RI-77/1, United States Energy Research & Development Administration, Technical Information Center, September, 1977. Available from National Technical Information Service, U.S. Dept. of Commerce,-Springfield, VA 22161.

4. Add Definition of "APPROVED" to Section 16 as follows: A~PROVED. Accep tab le to the au thor i ty hav ing jur isdic t ion . ~

COMMITTEE ON LIQUEFIED PETROLEUM GASES 58--2

5. Add Footnote I to definition of "APPROVED" as follows:

1. The National Fire Protection Association does not approve, inspect or certify any installations, procedures, equipment or materials; nor does it approve or evaluate testing laboratories. In determining the acceptability. of installations or procedures, equipment or materials, the authority having jurisdiction may base acceptance on compliance with NFPA or other appropriate standards. In the absence of such standards, said authority may require evidence of proper installation, procedure or use. The authority having jurisdiction may also refer to the listings or labeling practices of an organi- .zation concerned with product evaluations which is in a position to determine compliance with appropriate standards for the current production of listed items.

6. Amend Definition of " A S M E CODE" in Section 16 by changing " U G - 1 3 5 " to " U G - 1 3 6 . "

7. Amend Definition of "DIRECT GAs-FIRED TANK HEATER" in Sec- tion 16 as follows:

DIRECT GAs-FIRED TANK HEATER. A gas-fired device which applies hot gas from the hea te r combust ion c h a m b e r d i rec t ly to a por t ion of the con ta iner surface in contac t wi th LP-Gas l iquid.

8. Add cross-reference to Section 16 as follows:

IONITmN SOURCE. See Sources of Igni t ion.

9. Add Definition of "LABELED" to Section 16 as follows:

LABELED. E q u i p m e n t or mater ia l s to which has been a t t ached a label , symbol , or o the r ident i fying mark of an o rgan iza t ion accep tab le to the au tho r i t y hav ing jur i sd ic t ion and concerned with p r o d u c t eva lua t ion , t ha t ma in ta ins per iodic inspect ion of pro- duc t ion o f l abe led equ ipmen t or mater ia ls and by whose label ing the manufac tu re r indicates compl iance with a p p r o p r i a t e s tandards or pe r fo rmance in a specified manner .

/0. Add Definition of "LISTED" to Section 16 as follows:

LISTED. E q u i p m e n t o r mater ia ls included in a list publ i shed by an organiza t ion" accep tab le to t h e au thor i ty h a v i n g jur i sd ic t ion and concerned wi th p roduc t evaluat ion , tha t main ta ins per iodic inspect ion of p r o d u c t i o n of listed equ ipmen t or mater ia ls and whose listing s t a t e s ' e i t he r tha t the equ ipmen t o r mate r ia l meets appropr ia te , s t andards or has been tested and found sui table for use in a specified manner.1

o d~

58--3 AMENDMENTS TO NFPA 58 COMMITTEE .ON LIQUEFIED PETROLEUM GASES 58--4

11. Add Footnote 7 to Definition of "LISTED" as follows:

1. The means for identifying listed equipment may vary for each organization concerned with product evaluation, some of which do not recognize equipment as listed unless it is also labeled. The authority having jurisdiction should utilize the system employed by the listing organization to identify a listed product.

12. Add Definition of "Quick CONNECTORS" to Section 16 as follows:

QUICK CONNECTORS. Devices used for quick connections of the aeme thread or lever-cam types. This does not include devices used for cylinder-filling connections.

13. Add Definition of "SouRcEs OF ICNITION" to Section 16 as follows:

SOURCES OF IONITION. Devices or equipment which, because of their modes of use or operation, are capable of providing sufficient thermal energy to ignite flammable LP-Gas vapor-air mixtures when introduced into such a mixture or when such a mixture comes into contact with them, and which will permit propagation of flame away from them.

14. Add a new 2101 as follows and renumber existing 2707 through 2105 as 2702 through 2706.

2101. Containers shall comply with 2102 or shall be designed, fabricated, tested and marked using criteria which incorporate an investigation to determine that it is safe and suitable for the pro- .posed service, is recommended for that service by the manufacturer, and is acceptable to the authority having jurisdiction.

15. Amend 2103 (existing 2702) by changing "2101" to "2102."

76. Amend 2103(a) and 2103(b) (1) [existing 2102(a) and 2102(b) (1) ] by adding "See Appendix B, Section B-2." to the end of the present wording.

77. Amend Table 2-1 by changing the date of the A S M E Code from 1974 to 1977.

18. Add a new 2112 as follows:

2112. In addition t o the applicable provisions for horizontal ASME storage containers, vertical ASME storage containers over 2,000 gallons water capacity shall comply with 2112(a) through (e).

(a) Containers shall be designed to be self-supporting without the use of guy wires and shall satisfy proper design criteria taking into account wind, seismic (earthquake) forces, and hydrostatic test loads.

(b) Design pressure (see Table 2-1) shall be interpreted as the pressure at the top head with allowance made for increased pressure on lower shell sections and bottom head due to the static pressure of the product.

(c) Wind loading on containers shall be based on wind pressures on the projected area at various height zones aboveground as recommended in "Building Code Requirements for Minimum Design Loads in Buildings and Other Structures," ANSI A58.1- 72.1 Wind speeds shall,be based on a Mean Occurrence Interval of 100 years.

(d) Seismic loading on containers shall be based on forces recommended in the "Uniform Building Code - - 1976 Edition" (UBC-1976). ~ In those areas identified as zones 3 and 4 on the Seismic Risk Map of the United States, Figures 1, 2 and 3 of Chapter 23 of the UBC-1976, a seismic analysis of the proposed installation shall be made which meets the approval of the authority having jurisdiction.

(e) Containers shall be fabricated with lifting lugs or some othei" suitable means to facilitate erection in the field.

1. Available from American National Standards Institute, 1430 Broadway, New York, NY 10018. 2: Available from International Conference of Building Officials (ICBO), 5360 South Workman Hill Road, Whittier, CA 90601.

19. Amend 2740 by starting the first sentence with "Horizontal ."

20. Amend 2 747 by starting the sentence with "Horizontal ."

27. Add a new 2142 as follows and renumber existing 2142 and 2143 as 2 743 and 2144.

2142. Vertical ASME containers over 2,000 gallons water capacity designed for permanent installation in stationary service shall be designed with steel supports designed to permit mounting the container on, and fastening it to, concrete foundations. Such steel supports shall be designed to make the container self-supporting without guy wires and shall satisfy proper design criteria, taking into account wind, seismic .(earthquake) forces, and hydrostatic test load criteria established in 2112. O

58-5 AMENDMENTS TO NFPA 5 8

22. Amend 2143 (existing 2142) as follows:

(a) [Change 2142(a) and (b) to 2143(a) and (b) i~i the fourth line. ]

(b) [Delete existing 2142(a)(1) and the existing last sentence of 2142(a);]

(c) [Relocate existing 2132(a)(2) as a second sentence to 2143(a) [existing 2142(a)]. ]

23. Amend 2150, third line, to read "with 2151 through 2154 as applicable."

24. Amend 2151 as follows:

2151. When LP-Gas and one or more other compressed gases are to be stored or used in the same area, the containers shall be marked "Flammable" and either "LP-Gas," "LPG," "Propane" or "Butane." Compliance with marking requirements of Title 49 of the "Code of Federal Regulations" shall meet this provision.

25. Add a new 2152 as follows and renumber existing 2152 and 2153 as 2153 and 2754.

2152. When being transported, portable DOT containers shall be marked and labeled in accordance with Title 49 of the "Code of Federal Regulations."

26. Amend 2154 (existing 2153) by changing "2153(a) through (g)" to "2154(a) through (g)."


2212. ASME containers for LP-Gas shall be equipped with spring-loaded safety relief valves conforming with applicable requirements of the "Standard on Safety Relief Valves for Anhydrous Ammonia and LP-Gas," UL 132; Standards for Safety Relief Valves of the Factory Mutual Research Corporation; or other equivalent safety relief valve standards. The start-to-discharge setting of such safety relief valves, with relation to the design pressure of the container, shall be in accordance with Table 2-2.

28. Amend 2231(b) by deleting ", and on the exterior of removable dip tube gaging devices,".

29. Amend 2310 by adding ", or polyethylene (see 3165)" after "copper" and by changing "2310(a) through (f)" to "2310(a) through (g)."

COMMITTEE ON LIQUEFIED PETROLEUM GASES 58- -~

30. Add a new 2310(g) asJollows:

(g) Polyethylene pipe; ANSI B72.14 "Thermoplastic Gas Pressure Pipe, Tubing and Fittings" (ASTM D-2513-76) and be listed.

31. Amend 2320 by adding ", or polyethylene (see 3165)" after "copper" and by changing "2320(a) through (c)" to "2320(a) through (d)."

32. Add a new 2320(d) as follows:

(d) Polyethylene tubing; ANSI B72.14 "Thermoplastic Gas Pressure Pipe, Tubing and Fittings" (ASTM D-2513-76) and be listed.

33. Amend 2330 by adding "or polyethylene" after "iron" and by changing "2330(a) and (b)" to "2330(a) through (c)."

34. Add a new 2330(c) as follows:

(c) Joints in polyethylene pipe and tubing shall be made by heat fusion in accordance with the manufacturers' instructions.

(1) Polyethylene fittings shall conform to ASTM. D-2683-75 "Socket Type Polyethylene Fittings for Outside Diameter - - Controlled Polyethylene (PE) Pipe," or ASTM D-3261-73 "Butt Heat Fusion Polyethylene Plastic Fittings for Polyethylene (PE) Plastic Pipeand Tubing" and be listed.

35. Amend 2341 by changing "designed" to "suitable."

36. Amend 2341(b) by adding "but not to exceed 250 psig," between "125 psig," and "shall."

37. Amend heading of 235 by adding "Quick Connectors" between "Hose" and "Hose Connections."

38. Amend 2351 by adding "and quick connectors" between "hose" I and "shall."

39. Amend 2352(a) by changing "identified" to "marked with" and by I adding "and with the working pressure in psig" between "LPG" [ and "at."

0

5 8 - 7 A M E N D M E N T S TO. N F P A 5 8 C O M M I T T E E ON L I Q U E F I E D P E T R O L E U M G A S E S 5 8 - - 8

40. Amend 2352(b) as follows:

(b) Hose assemblies, after the application of connections, shall have a design capability of withstanding a pressure of not less than 700 psig. If a test is made, such assemblies shall not be leak tested at pressures higher than the working pressure (350 psig minimum) of the hose.

47. Amend 2360 by substituting the following after "piping":

"between closed shutoff valves shall have presgure settings not less than 400 psig or more than 500 psig unless installed in systems designed to operate above 350 psig. Hydrostatic relief valves for use in systems designed to operate above 350 psig shall have settings

• not less than 110 percent or more than 125 percent of the system design pressure."

42. Delete Table 2-4 and renumber existing Table 2-5 as Table 2-4.

43. Amend 2400 by adding "the pressure containing metal parts of" between "for" and "LP-Gas," adding ", sight flow glasses" between "meters" and "and," and adding a new second sentence as follows: "Con- tainers are not subject to the provisions of this section."

44. Amend 2407 as foUows:

2401. Equipment shall be suitable for the appropriate working pressure as follows:

(a) Equipment to be used at pressures higher than container pressure, such as on the discharge of a liquid pump, shall be suitable for a working pressure of at least 350 psig. If pressures above • 350 psig are necessary, the pump and all equipment under pressure from the pump shall be suitable for the pump discharge pressure.

(b) Equipment to be used with liquid LP-Gas, or vapor LP- Gas at pressures over 125 psig but not to exceed 250 psig, shall be suitable for a working pressure of at least 250 psig.

(c) Equipment to be used with vapor LP-Gas at pressures over 20 psig, but not to exceed 125 psig, shall be suitable for a working pressure of at least 125 psig.

(d) Equipment to be used with vapor LP-Gas at pressures not to exceed 20 psig shall be suitable for a working pressure adequate for the service in which it is to be used.

45. Amend 2402 by adding a new next-to-the-last sentence as follows: "Aluminum may be used for approved meters."


2411. The maximum discharge pressure of a liquid pump under normal operating conditions shall be limited to 350 psig.

47. Amend 2431(a) by changing "1974" to "1977."

48. Amend 2432(a) and ( f ) by changing "1974'"t0 '.'1977."


2434. Direct gas-fired tank heaters shall be designed exclusively for outdoor aboveground use and so that there is no direct flame impingement upon the container. The provisions of 2434(a) through (f) shall also apply.

(a) Tank heaters shall be approved and be permanently ............ (remainder unchanged.)

(1) (Unchanged.) (2) (Unchanged.) (3) (Unchanged.).

(b) The heater shall be designed so that it can be readily re- . . . . . . . • LII~ I~IlLII~ CUIIL¢IIIICI . m u v e u f o r inspection of *' . . . . . . -" . . . . . . . . . : - - -

(c) The fuel gas supply connection to the tank heater shall originate in the vapor space of the container being heated and shall be provided with a manually operated shutoff valve at the heater.

(d) The heater control system shall be equipped with an automatic safety shutoff valve of the manual-reset type arranged to shut off the flow of gas to both the main and pilot burners if the pilot flame is extinguished.

(e) When installed on a container exceeding 1,000 gallons water capacity, the heater control system shall include a valve to automatically shut off the flow of gas to both the main and pilot burners if the container becomes empty of liquid.

(f) Existing (d) amended by changing "1974" to "1977."

50. Amend 2470 by deleting "on the low pressure side."

51. Amend 2470(a) by adding "on the low pressure side" between "valve" and "having" and by changing "Table 2-5" to "Table 2-4."

52. Amend 2470(b) by adding "regulator" between "the" and "inlet," deleting "side," and by changing "Table 2-5" to "Table 2-4." 0


Editorially correct 2522 by,changing 2434 to 53. 2435.


(b) Containers of less than 125 gallons water capacity for the purposes of being filled in buildings or structures complying with Chapter 7.

55. Amend 3177, last line, as follows: "with Table 3-1 or with 3112."

56. Amend the "Mounded or Underground" column in Table 3-1 by changing "25 feet" to "10 feet" and deleting "(Note (c))."

57. Amend 3120 as foUows:

3120. Containers shall be installed in accordance with 3120(a) through (f):

(a) Existing 3120 with second sentence amended as follows: "Flexi- bility shall be provided in the connecting piping."

(b) All containers shall be positioned so that the safety relief valve is in direct communication with the vapor space of the container.

(e) Second sentence of existing 312 l.

(d) The installation position of ASME containers shall make all container appurtenances accessible for their normally intended u s e .

(e) Existing 3128.

(f) Existing 3729.

58. Delete existing 3121.

59. Renumber existing 3122 as 3121 and amend by starting the sentence with "Horizontal" and changing "3122(a)(2)b and 3122(c)" to "3121(a)(2) b and 3121(b)."

60. Amend 3127(a) [existing 3122(a)] by changing "3122(c)" to "3121(b)."

61. Amend 3127(a)(2) b (existing 3122(a)(2) b) by deleting "surface of the" and ending the sentence as follows: "and that flexibility in the connecting piping is provided."

62. Delete existing 3722(b) and renumber existing 3122(c) and (d) as alz l (b) and (c).

COMMITTEE ON LIQUEFIED PETROLEUM GASES ~ 8 - - 1 0

63. Add a new 3722 as follows:

3122. Vertical ASME containers over 2,000 gallons water capacity designed for permanent installation in stationary service aboveground shall be installed on reinforced concrete foundations which are designed to meet the loading provisions established in 2112.

64. Amend 3123 by changing "2142(a)" to "2143(a)."

65. Amend 3723(b) asJollows: (b) Flexibility shall be provided in the connecting piping.

66. Amend 3124 by changing "2142(b)" to "2143(b)."


(b) Flexibility shall be provided in the connecting piping.

68. Amend 3125 by changing "2143" to "2144."

69. Add a new 3726 as follows and renumber existing 3726 and 3727 as 3727 and 3728:

3126. Mounded containers shall be installed as follows: (a) (Existing 3921(a).)

(b) (Existing 3927(6).)

70. Relocate existing 3128 and 3729 as 3120(e) and (J). See Item 57.

77. Amend 3730 by adding "and positioned so that the safety relief valve is in direct communication with the vapor space of the container." to the end of the sentence.


73. Amend 3734(a) by changing "3813(a)" to "3814(a)."

74. Amend 3735(a)(2) by adding the following three sentences:

"The valves shall be readily accessible for operation and mainte- nance under normal and emergency conditions, either because of location or by means of permanendy installed special provisions. Valves installed in an unobstructed location not more than 6 feet above ground level shall be considered accessible. Special provisions include, but are not limited to, stairs, ladders, platforms, remote operators or extension handles."

0

58-11 AMENDMENTS TO NFPA ~8

75. Amend J135(b) by deleting "tampering and" from the existing first sentence and by deleting the existing entire second sentence.

76. Amend 3141(a) by substituting "with flexibility provided in the connecting piping",f0r "by means of a suitable flexible connection."

77. Add new 3150(b) as follows and redesignate existing 3150(b) and (c) as 315O(c) and (d):

(b) Polyethylene piping systems shall be limited to vapor service not exceeding 30 psig.

78. Amend new 3150(d)(1) b Note (existing 3750(c)(1) b Note) by changing "3150(c)(1) b" to "3150(d)(1) b."

79. Amend new 3750(d)(3) [existing 3150(c)(3)1 by changing "3150 (c)(1) and (2)" to "3150(d)(1) and (2)."

80. Amend thesecond sentence oJ 3760 by starting it with "Metallic."

' 8!. Amend 376! by starting it with "Metallic."

I . 82. Amend 3762 by starting it with "Metallic."

83. Amend the last sentence of 3164 by adding "pipe, tubing or" between "nonmetallic" and "hose."

I 84. Amend 3165 by starting the first sentence with "Metallic," starting the second sentence with "Aboveground" and by adding a new fourth sentence as follows:

"Nonmetallic piping, including the nonmetallic portions of transi- t ion fittings, shall be installed outside, a minimum of 12 inches

• I undergroOnd and in accordance with the piping manufacturers' instructions."

85. Amend 3766 by starting the first sentence with "Metallic" and by adding "metallic or nonmetallic" between "occur," and "piping" in the second sentence.

86. Amend 3167 by substituting "components" for "connections."


COMMITTEE ON LIQUEFIED PETROLEUM GAS]~S 5~--1~

88. Amend the first "sentence of 3168(a) by substituting "fixed pipirig of the transfer system within 20.feet of lineal pipe from the nearest end of the hose or swivel type piping to which the hose of swivel type piping is connected." for "transfer line where the hose or swivel type-piping is connected to the fixed piping of. the system."

89. Amend 3768(a)(7) by substituting "valve, or a supplemental temperature sensitive element (250 F maximum) connected to ac- tuate the valve," for "thermally actuated shutoff system" and by deleting "in an unobstructed direct line."

90. Amend 3168(b) by adding a new last sentence as Jollows: "Such anchorage is not required for tank car unloading."

91. Amend 3169(a) by ending the sentence after " type."


(b) Positive displacement pumps shall be installed in accordance with 2411.

93. ~,,,o,,=n-"-'~ ,,,,,-~,~"°n v y ~'' ~,,=,,s,,zg"~'"-":= ,,4oot,,_~,,,., to "A2 I , , ,,.,,"~A 422."

• 94. Amend 3223(a) by adding "larger than l~-inch internal diameter" between "piping," and "into" and by adding "or vapor" between 'Cliquid" and "is."

95..: Amend 3223(b) by adding "larger than N-inch internal diameter" " i in " between p p g, and "f rom" and by adding "or vapor" between

"liquid" and "is."

96. Amend 3236 by changing "4041(a)" to "4310(a)."

97. Add the following to 3300: v .

.These systems are permitted only under the conditions specified in 3300(a) through (c) and in accordance with 3310 through 3316. Containers in use shall mean connected for use.

(a) The portable use of containers indoors shall be only for the purposes specified in 332 through 337. Such use shall be limited to those conditions where operational requirements make portable use of-containers necessary and location outside is impractical.

(b) Permanent installations using portable containers on roofs shall be as specified in 338. Such use shall be limited to those con-

O


ditions where operational requirements make portable use of con- miners necessary and location not on roofs of buildings or structures is impractical.

(c) Liquid LP-Gas shall be piped into buildings or structures only for the purposes specified in 3150(d).

98. Delete existing 3310 and renumber existing 3311 through "3317 as 3310 through 3316.

99. Change 3317 to 3316 in new 3316(b) [existing 3317(b)].

700. Amend 3315 (existing 3316) as foUows:

3315. When containers are located on a floor or roof, provisions shall be made to minimize the possibility of containers falling over the edge.

101. Amend 3315(a) [existing 3376(a)] by changing "4010" to "4200(b)."

102. Amend 3376(b) [existing 3317(b)] bychanging"3317" to"3316."

103. Amend 3380( f ) by changing "3313" to "3312."

ZOd. Amend 3390 and 3391 by changing "3150(c)(1)" and "3150(c) (2)" to "3150(d)(1)v and "3150(d)(2)."

105. Amend 3517(b) by changing "gas-air mixer" to "gas regulator," adding "gas-air" between "the"-and "mixer," and substituting "engine is not running." for "ignition is off, or if the engine should stop." in the first sentence; and by substituting the following.for the second sentence: "Atmospheric type regulators (zero governors) shall not be considered as automatic shutoff valves except for portable ehgines of 12 horsepower or less with magneto ignition and used exclusively outdoors."

106..Amend 3527(b) by substituting "gas-air mixer when the engine -is not running." for "engine when the ignition is off, or if the engine should stop."

107. Amend 3531(a) :by substituting "prevent the flow of fuel to the gas-air mixer when the engine is not running." for "close if the engine should stop."

COMMITTEE ON LIQUEFIED PETROLEUM GASES 58-14

108. Amend the first sentence of 3543(a) by substituting "in the fuel line designed to prevent the flow of fuel to the gas-air mixer when the engine is not running.",for "as, provided by 3531(a)."

109. Amend 3553 by substituting "provided in the fuel line designed to prevent the flow of fuel to . the gas-air mixer when the engine is not running." for "as provided in 3531(a)."

110.. Delete 3614(b).and redesignate existing 3614(c) as 3614(b).

,111: Amend 3614(b) [existing 3614(c)] by adding a second sentence as follows:

" I f the heat supplying device is gas.fired and is packaged with the vaporizer, or installed within 15 feet of the vaporizer, it shall be subject to .the provisions of 362 covering installation of direct

• gas-fired vaporizers."

112 . Amend 3675 by substituting "a" ./or " the" between "into" and : "heating" and by adding. "which is.supplying heat .to areas other than the LP-Gas facility" .between "system" and " in" in the first sentence and by adding a new second sentence as follows:

" I f the device supplying the heat to the vaporizer is for that purpose only, the device, or the piping to and from the device, shall contain a relief valve, vented to the outside, to relieve excessive pressure in the event of a tube rupture in the vaporizer."

113. Amend Table 3-3 by deleting "(See 4001)" and changing "20 feet" to "15 feet."

7 ld. Amend Table 3-4 asfollows:

Container Water Capacity

Table 3-4

l~inlnau~ll Distance Requi red

500 gallons or less 10 feet • 501 to 2000 gallons 25 feet 2001 to 30,000 gallons 50 feet 30,001 to 70,000 gallons 75 feet 70,001 to 90,000 gallons 100 feet 90,001 to 120,000 gallons 125 feet

115. Delete existing 3630(b).

0

58-15 AMENDMENTS TO NFPA 58 COMMITTEE ON LIQUEFIED PETROLEUM GASES 58-16

• 116. Add a new 3630(b) asfoUows:

(b) Direct gas-fired tank heaters shall be attached to aboveground containers only.

117. Add a new 3630(c) asJollows:

(c) I f a point of transfer is located within 15 feet of a direct gas,fired tank heater, the heater burner and pilot shall be shut off during ' the product transfer and a caution notice shall be dis- played-immediately adjacent to the filling connections, stating the following:

"A gas-fired device which contains a source of ignition is con- . nected to this container. Burner and pilot must be shut off before

filling tank."

118. Amend Part E of Table 3-6 by substituting "(other than direct- fired or indirect-fired with an a t tached or adjacent gas-fired heat source)" Jot "other than direct-fired."

119. Amend 3720 by deleting "vaporizer rooms (except those housing direct-fired vaporizers)".fr0m the first sentence and by adding "or indirect- fired vaporizers attached or installed adjacent to gas-fired heat sources" between "vaporizers" and "shall" in the second sentence.

. 120. Relocate existing Subsection 406 in its entirety as a new Subsection 373. Existing 4060 and 4061 become 3730 and 3731. Editorially amend new 3730 byadding "other" between " the" and "provisions" in the second sentence.

127. Amend 3812(d) by combining the two sentences as follows: ". • • passenger cars and taxicabs, or in spaces completely sealed off from the interior of station wagons, _vans or other similar vehicles as follows :"

122. Amend 3812(d)(2) as.follows:

(2) The passe0ger-carrying compartment, and any space containing radio equipment, shall be isolated from the space in which the container and container fittings are located, by a seal to prevent direct seepage of gas to these spaces by venting this sealed-off container space to the outside of the vehicle so that:

.a. Any LP-Gas released within it will be readi ly dissipated to the outside, and

b. The seal will not be damged due to the sudden increases in air pressure which may occur when the luggage compar tment or vehicle doors are closed quickly.

123.. Amend 3812(d) (3) as.follows.:

(3) Permanently installed fuel containers on passenger-carrying.vehicles shall be installed and fitted so that no gas from fueling and gaging operations, or from relief valves, can be released inside the passenger or ,luggage compartments, or within any space containing radio equipment, as follows:

a. Remote .(outside) filling connections shall be used, and

b. The discharges f rom gaging devices and container refief valves shall be piped to the outside of the vehicle. Relief valve discharge shall .be directed upward within. 45 ° o£ the vertical so t h a t a n y gas released will not impinge on the vehicle, and so that the possibility of impingement on adjacent vehicles is minimized.

• i24. Amend. 38 i 3(e)by changing "4061(b)" to "3731(b)2'

125. Amend 3816(b) by substituting "flexibili tyshall be provided in the piping" for "a flexible connection shall be installed."


127. Amend 3921 by sfibstituting "3126 shall constitute adequate -. protection." for ':3921(a) and (b) shall apply:" . Existing 3921(a)

and (b) become 3126(a) and (b). See Item 69.

128. Amend heading oJ Section 40 by changing " G E N E R A L PRO- V I S I O N S " to "SCOPE."

1 2 9 . Amend the second sentence of. 4000 as .follows: "Included are provisions covering operat ionalsafety , location of transfer opera-

. tions and methods for determining the quantity of, LP-Gas per- .rnitted in containers."

130. Delete .existing 4001 and renumber existing 4002 as 4001,

l i l t

5 8 - 1 7 AMENDMENTS TO NFPA 58

/31. Add new Section 47 as follows:

41. O P E R A T I O N A L SAFETY

41o. (Existing "402.) 4100. (Existing 4020.)

4101. (Existing 4021.)

411. (Existing 403.)

4110. (Existing 4030.)

4111. (Existing 4031.) 4112. (Existing 4032.)

4113. (Existing 4033.) (a) [Existing 4033(a).1 (b) [Existing 4033(b) amended by deleting "(or its equivalent,

see 2111)."]

412. (Existing 405 amended by deleting "General".)

4120.

4121.

4122. positive

4123.

4124.

4125.

4126.

4127. (a)

(b)

(Existing 4050.)

(Existing 4051.) (Existing 4052 amended to read "Transfer systems using

displacement pumps shall comply with 2411. ')

(Existing 4053.)

(Existing 4054.)

(Existing 4055.)

(Existing 4077.)

(Existing 40 / 3.) [Existing 4073(a).] [Existing 4013(6).]

132. Amend Section 42 as follows:

42. L O C A T I O N OF TRANSFER OPERA TIO N S

420. General

4200. (Existing 4010 editorially rearranged and amended as follows:)


4200. Liquid shall .be transferred into containers, including containers mounted on vehicles, only outdoors or in structures especially designed for this purpose.

(a) Structures housing transfer operations or converted for such use after December 31, 1972 shall comply with Chapter 7.

(b) The transfer of liquid into containers on the roofs of structures is prohibited.

421. (Existing 42/ amended to read: "Containers in Stationary In- stallations.")

4210. (Existing 4210 amended by substituting "located outdoors in stationary installations (see definition)" for "permanently located and installed outdoors.")

4211. (Existing 4277 amended by adding "(see definition)" between "transfer" and "is" and by changing "Table 4-2" to "422.")

422. (Existing 422 amended to read "Containers in Nonstationary Installations.")

4220. (Existing 4220 amended as follows:)

4220. This subsection includes provisions for filling of portable containers not a part of a stationary installation (see definition), including containers mounted on vehicles (including recreational vehicles) and industrial, and agricultural equipment.

4221. [Existing 4227 amended by adding "(see definition)" between "transfer" and "or" , changing "Table 4-2" to "Table 4-1" and by adding a new 4227(a) as follows:]

(a) If the point of transfer is a component of a system covered by Sections 35 or 38 or part of a system installed in accordance with standards referenced in 3003; Parts 1, 2 and 3 of Table 4-1 do not apply to the structure containing the point of transfer.

(b) (Existing 422 l(a) amended by changing "4040(d)" to "4300(d)" and "Table 4-2" to "Table 4-1.")

(c) [Existing 4221(b) amended by changing "Table 4-2" to "Table 4-1.")]

423. Cargo Vehicles

4230. (Existing 4072 amended by substituting "Cargo vehicles (See Section 62)" for "Tank trucks or transports.")

[ 58-19 A M E N D M E N T S TO NFPA 58

133. Amend Table 4-l (existing Table 4-2) by substituting "all other locations" for "Distributing Plants" in Part 6(b), by adding "other than those being filled" after "Containers 4'' in Part 9, changing "Table 4-2" to "Table 4-1" in Note l, and by adding ", for the purpose of this Table," between "Buildings" and "include" in Note 2.

13g. Add a new Section 43 as follows:

43. V E N T I N G LP-GAS T O T H E A T M O S P H E R E

430. G e n e r a l

4300. (Existing 4040.)

(a) [Existing dOdO(a).]

(b) [Existing dOdO(b).]

(c) (Existing 40dO(c) amended by changing "4040(a)" to "4300(a)" and "4010" to "4200.")

rA~,~, [Existing dOdO(d).]

~ln4 g ~ ~ax. Put- n g

4310. (Existing 40dl.)

(a) (Existing dOdI(a) amended by changing '4010" to "4200.")

(1) [Existing dOdl(a)( /).] (2) [Existing 4047(a)(2).] (3) [Existing ffOdl(a)(3).]

(b) [Existing dO4l(b).]

(c) [Existing. dOff 7 (c).]

432. E m e r g e n c y V e n t i n g

4320. (Existing 4042.)

- 135. Amend Section 44 (existing 41) as follows:

44. Q U A N T I T Y OF LP-GAS IN C O N T A I N E R S

440. (Existing 410.) 4400. (Existing 4700 amended by substituting "permissible LP-Gas

content of containers" for "quanti ty of LP-Gas which may be filled into containers.")

COMMITTEE ON LIQUEFIED PETROLEUM GASES 5 8 - 2 0

441. (Existing d / / amended to read, "LP-Gas Capacity of Con- tainers.")

4410. The maximum LP-Gas con'tent of any container shall be that quantity which eqqals the maximum permitted filling density

• (See Appendix E-l) given in Table 4-2.

4411. Filling Density is defined as the ratio of the weight of LP-Gas in a container to the weight of water at 60 F that the container w i l lho ld . The maximum permitted filling density shown in Table 4-2 is in percent of the water weight capacity (WWC) for the specific gravity of the particular LP-Gas, the size of the container and the container location.

4412. Determination that the LP-Gas content of a container complies with Table 4-2 may be either by weight or by volume in accordance with 442. If by volume, the volume having a weight equal to the maximum permitted filling density may be calculated by the formula in Appendix E, Section E-30. These equivalent volumes are shown in Tables 4-3, 4-4, and 4-5.

T a h l ~ 4.? ( r , ~ l n e , c , * ; ¢ t ; . . T ~ A I . d - ! ) . . . . . . . x- - r . . . . . . . . . . . . . o . . . . .

MAXIMUM PERMITTED FILLING DENSITY

Above,round Containers .

Specific 0 to 1200 U.S. GMs. Over 1200 U.S. Gals. Underground Gravity (1000 Imp. gal., (1000 Imp. g a l . , Containers at 60 F. 4550 litem) 4550 litem) All (15.6 C.) TotM Water Cap. Total Water Cap. Capacities

.496-.503 41% 44 % 45 %

.504-.510 42 45 46

.511-.519 43 46 47

.520-.527 44 47 48

.528-.536 45 48 49

.537-.544 46 49 50

.545-.552 47 50 51

.553-.560 48 51 52

.561-.568 49 52 53

.569-.576 50 53 54

.577-.584 51 54. 55

.585-.592 52 55 56

.593-.600 53 " 56 57

Table 4-3

M A X I M U M P E R M I T T E D LIQUID V O L U M E (Percent of Total Water Capacity)

Aboveground, Containers 0 to 1 2 0 0 Gallons

Specific Gravi ty

.496 .504 .511 .520 .528 .537 .545 .553 .561 .569, .577 .585 .593 Liquid to to to to to to to to to to to to to

T e m p . °F .503 .510 .519 .527 .536 .544 .552 .560 .568 .576 .584 .592 .600

--50 70 71 72 73 74 75 75 76 77 78 79 79 80 --45 71 72 73 73 74 75 76 77 77 78 79 80 80 --40 71 72 73 74 75 75 76 77 78 79 79 80 81 --35 71 72 73 74 75 76 77 77 78 79 80 80 81 --30 72 73 74 75 76 76 77 78 78 79 80 81 81

--25 72 73 74 75 76 77 77 78 79 80 80 81 82 --20 73 74 75 76 76 77 78 79 79 80 81 81 82 --15 73 74 75 76 77 77 78 79 80 80 81 82 83 --10 74 75 76 76 77 78 79 79 80 81 81 82 83 - - 5 74 75 76 77 78 78 79 80 80 81 82 82 83

0 75 76 76 77 78 79 79 80 81 81 82 83 84 5 75 76 77 78 78 79 80 81 81 82 83 83 84

10 76 77 77 78 79 80 80 81 82 82 83 84 84 15 76 77 78 79 80 80 81 81 82 83 83 84 85 20 77 78 78 79 80 80 81 82 83 84 84 84 85

I!

2 5 77 78 79 80 80 81 82 82 83 84 84 85 85 30 78 79 79 80 81 81 82 83 83 84 85 85 86 35 78 79 80 81 81 82 83 83 84 85 85 86 86

*40 79 80 81 81 82 82 83 84 84 85 86 86 87 45 80 80 81 82 82 83 84 84 85 85 86 87 87

50 80 81 82 82 83 83 84 85 85 86 86 87 88 55 81 82 82 83 84 84 85 85 86 86 87 87 88 60 82 82 83 84 84 85 85 86 86 87 87 88 88 65 82 83 84 84 85 85 86 86 87 87 88 88 89 70 83 84 84 85 85 86 86 87 87 88 88 89 89

75 84 85 85 85 86 86 87 87 88 88 89 89 90 80 85 85 86 86 87 87 87 88 88 89 89 90 90 85 85 86 87 87 88 88 88 89 89 89 90 90 91 90 86 87 87 88 88 88 89 89 90 90 90 91 91 95 87 88 88 88 89 89 89 90 90 91 91 91 92

100 88 89 89 89 89 90 90 90 91 91 92 92 92 105 89 89 90 90 90 90 91 91 91 92 92 92 93 110 90 90 91 91 91 91 92 92 92 92 93 93 93 115 91 91 92 92 92 92 92 92 93 93 93 94 94 120 92 92 93 93 93 93 93 93 93 94 94 94 94

125 93 94 94 94 94 94 94 94 94 94 94 95 95 130 94 95 95 95 95 95 95 95 95 95 95 95 95

*See 4422(a).

B'J

0

p. EQ

I

I q l

T a b l e 4-4

M A X I M U M P E R M I T T E D L I Q U I D V O L U M E (Percent of Tota l VVater Capac i ty )

J

A b o v e g r o u n d C o n t a i n e r s O v e r 1200 GaUons

Specific G r a v i t y

• 496 .504 .511 .520 .528 .537 .545 .553 .561 .569 .577 .585 .593 L i q u i d to to to to to to to to to to to to to

T e m p . °F .503 .510 .519 .527 .536 .544 .552 .560 .568 .576 .584 .592 .600

- -50 75 76 77 78 79 80 80 81 82 83 83 84 85 - -45 76 77 78 78 79 80 81 81 82 83 84 84 85 - -40 76 77 78 79 80 80 81 82 83 83" 84 85 85 - -35 77 78 78 79 80 81 82 82 83 84' 84 85 86 - -30 77 78 79 80 80 81 82 83 83 84 85 85 86

- -25 78 79 79 80 81 82 82 83 84 84 85 86 86 - -20 78 79 80 81 81 82 83 83 84 85 85 86 87 - -15 79 79 80 81 82 82 83 84 85 85 86 87 87 - -10 79 80 81 82 82 83 84 84 85 86 86 87 87 - - 5 80 81 81 82 83 83 84 85 85 86 87 87 88

0 80 81 82 82 83 84 84 85 86 86 87 88 88 5 81 82 82 83 84 84 85 86 86 87 87 88 89

10 8 1 82 83 83 84 85 85 86 87 87 88 88 89 15 82 83 83 84 85 85 86 87 87 88 88 89 90 20 82 83 84 85 85 86 86 87 88 88 89 89 90

~Z

0

25 83 84 84 85 86 86 87 88 8 8 89 89 30 83 84 85 86 86 87 87 88 89 89 90 35 84 85 86 86 87 87 88 89 89 90 90

*40 85 86 86 87 87 . 88 88 89 90 90 91 45 85 86 87 87 88 88 89 89 90 91 91

90 90 90 91 91 91 91 92 92 92

50 86 87 87 88 88 89 90 90 91 91 92 92 92 55 87 88 88 89 89 90 90 91 91 92 92 92 93 60 88 88 89 89 90 90 91 91 92 92 93 93 93 65 88 89 90 90 91 91 '91 92 92 93 93 93 94 70 89 90 90 '91 91 91 92 92 93 93 94 94 94

75 90 91 91 91 92 92 92 93 93 94 94 94 95 80 91 91 92 92 • 92 93 93 93 94 94 95 95 95 85 92 92 93 93 93 93 94 94 95 95 95 96 96 90 93 93 93 94 94 94 95 95 95 95 96 96 96 95 94 94 94 95 95 95 95 96 96 96 96 97 97

100 94 95 95 95 95 96 96 96 96 97 97 97 98 105 96 96 96 96 96 97 97 97 97 97 98 98 98 110 97 97 97 97 97 97 97 98 98 98 98 98 99 115 98 98 98 98 98 98 '98 98 98 99 99 99 99

* S e e 4 4 2 2 ( a ) .

8

o

o

SII

T a b l e 4 - 5

M A X I M U M P E R M I T T E D L I Q U I D V O L U M E (Percent of To ta l W a t e r Capac i ty )

All U n d e r g r o u n d C o n t a i n e r s

S p e c i l i c G r a v i t y

.496 .504 .511 .520 " .528 .537 .545 .553 .561 .569 .577 .585 .593 L i q u i d to to to to to to to to to to to to to

T e m p . ° F .503 .510 .519 .527 .536 .544 .552 .560 .568 .576 .584 .592 .600

- -50 77 78 79 80 80 81 82 83 83 84 85 85 86 - -45 77 78 79 80 81 82 82 83 84 84 85 86 87 - -40 78 79 80 81 81 82 83 83 84 85 86 86 87 - -35 78 79 80 81 82 82 83 84 85 85 86 87 87 - -30 79 80 81 81 82 83 84 84 85 86 86 8~ 88

- -25 79 80 81 82 83 83 84 85 85 86 87 87 88 - -20 80 81 82 82 83 84 84 85 86 86 87 88 88 - -15 80 81 82 83 84 84 85 86 86 87 87 88 89 - -10 81 82 83 83 84 85 85 86 87 87 88 88 89 - - 5 81 82 83 84 84 85 86 86 87 88 88 89 89

0 82 83 84 84 85 85 86 87 87 88 89 89 90 5 82 83 84 85 85 86 87 87 88 88 89 90 90

10 83 84 85 85 86 86 87 88 88 89 90 90 91 15 84 84 85 86 86 87 88 88 89 89 90 91 91 20 84 85 86 86 87 88 88 89 89 90 90 91 91

t~

r/2

o Z

o~ oo

25 85 86 86 87 87 88 89 89 90 90 91 91 92 30 85 86 87 87 88 89 89 90 90 91 91 92 92 35 86 87 87 88 88 89 90 90 91 91 92 92 93 40 87 87 88 88 89 90 90 91 91 92 92 93 93 45 87 88 89 89 90 90 91 9 1 92 92 93 93 94

*50 88 89 89 90 90 91 91 92 92 93 93 9~ 94 55 89 89 .90 91 91 91 92 92 93 93 94 94 95 60 90 90 91 91 92 92 92 93 93 94 94 95 95 65 90 91 91 " 92 92 93 93 94 94 94 95 95 96 70 91 91 92 93 93 93 94 94 94 95 95 96 96

75 92 93 93 93 94 94 94 95 95 95 96 96 97 80 93 93 94 94 94 95 95 95 96 96 96 97 97 85 94 94 95 95 95 95 96 96 96 97 97 97 98 90 95 95 95 95 96 96 96 97 " 97 97 98 98 98 95 96 96 96 96 97 97 97 97 98 98 ' 98 98 99

100 97 97 97 97 97 98 98 98 98 99 99 99 99 105 98 98 98 98 98 98 99 99 99 99 99 99 99

* S e e 4 4 2 2 ( a ) .

o

~0 o

Q

oo I

911


442. Compliance With Maximum Permitted Filling Density Provisions

4420. The maximum permitted filling density for any container, where practical, may be determined by weight.

4421. The volumetric method may be used for the following containers if designed and equipped for filling by volume:

(a) [Existing 4124(a)amended by ending the sentence after "installation)."]

(b) [Existing 4124(b) amended by ending.the first sentence;after "more" and by changing the parenthetical material to read "(See D O T regulations requiring spot weight checks)."]

(c) (Existing 4126 amended to read "Cargo tanks or portable tank containers complying with D O T Specifications MC-330, ML-331 or D O T 51.")

(d). (Existing 4124(c) amended to read, "ASME and A P I - A S M E Containers complying with 2102 or 2111.")

4422. (Existing 4725 amended as follows.') '9 ' ) 44,~,.. When the volumetric method is used, it shall be m ac-

cordance with 4422(a) through (c). _(a) i f a max imum fixed liquid level gage, or a variable liquid

level gage without liquid volume temperature correction is used, the liquid level indicated by these gages must be computed on the basis of the maximum permitted filling density when the liquid is at 40 F for aboveground containers or at 50 F for underground containers.

(b) When a variable liquid level gage is used and the liquid • volume is corrected for temperature, the maximum permitted

liquid level shall be in accordance with Tab]es 4-3, 4-4, or 4-5. (c) In the case of containers fabricated after December 31,

1965 with a water capacity of 2,000 gallons or less and which are filled at consumer sites, gaging shall comply with the following:

(1) The variable gage shall have been checked for accuracy by comparison with the liquid level indicated by the fixed maxi- m u m liquid level gage.

(2) I f the container is to be filled beyond the level indicated by the fixed maximum liquid level gage, the reading of the variable gage, adjusted for the error indicated by the check with the fixed maximum liquid level gage, shall be corrected for the LP-Gas liquid temperature.

4423. When containers are to be filled volumetrically by a variable liquid level gage in accordance with 4422(b), provisions shall be made for determining the liquid temperature (see E-201).

COMMITTEE ON LIQUEFIED PETROLEUM GASES ~8--28

136. Add a new 5107 as.follows and renumber existing 5101 through 5103 as 5102 through 5104.

5101. Containers in storage having individual water capacity g r e a t e r than 21/~ pounds (nominal one pound LP-Gas capacity) shall be positioned such that the safety relief valve is in direct com- municatlon with the .vapor space of the container.

137.. Amend 5210 as.follows:

6210. The max imum quan t i ty allowed in one storage location • shall not exceed 735 pounds water capacity (nominal 300 pounds LP-Gas). If additional storage locations are required on the same floor within the same building, they shall be separated by a minimum of 300 feet.: Storage beyond these limitations shall comply with 522.

138. Amend 6000(a) by ending the sentence after the first "containers."

139. Amend heading of 611 by adding "As Cargo."

140. Amend 61.10 by substituting "having an-individual water ca-

water capacity" and by changing "6117" to "6118."

141. Add a. new 6114 as.follows and renumber existing 6114 through 6117 as 6115 through 6118.

6114. The cargo space of the vehicle shall be isolated from the drivers' compartment, the engine and its exhaust system. Open- bodied vehicles shall be considered as in compliance with this provision. Closed-bodied vehicles having 'separate cargo, drivers' and engine compartments shall be considered as in compliance with this provision.

(a) Closed-bodied vehicles of the van type shall not be used for transporting more than a 300 pound load of LP-Gas unless the drivers' and _engine compartments are separated from' the cargo space by a. vapor-tight partition which contains no means of access to the cargo space.

142. Amend 6116 (existing 6115) by substituting "having an individual water capacity exceeding 200 pounds" .for "in excess of 200 pounds water capacity."

143. Amend 6117 (existing 6116) by substituting "having an individual water capacity not exceeding 200 pounds" for "not exceeding 200 pounds water capacity." ~ l l


144. Amend 6118 (existing 6117) by adding ", including the weight of the containers," between "LP-Gas" and "shall" and by" changing "marked" to "placarded."

145. Amend 6126 by adding ", including the weight of the containers," between "LP-Gas" and "shall" and by changing "marked" to "placarded."

146. Amend 6221 by substituting "2401" .for "6221(a) and (b)" and deleting existing 6221(a) and (b).

147. Amend 6410 by starting the~sentence with, "Except as provided in 6410(a)," ending the sentence with "transportation.", and adding a new 6410(a) as.follows:

(a) Containers containing more LP-Gas than 5 percent of their water capacity may be transported subject to such limitations as may be specified by the authority having jurisdiction.

148. Amend Bo211 by adding "to be" between "is" and "filled."

149. Amend B-21 l(a) by adding "except that D O T 4E (aluminum) cylinders must be permanently removed from service." to the end of the sentence.

150. Amend B-213 by adding "for most commonly used LP-Gas specification containers (see D O T regulations for permissible re- qualification methods for specific cylinder specifications)" to the end of the first sentence.

151. Amend B-213(c) by changing the date of CGA Pamphlet C-6 .from "1962" to "1975."

152. Amend C-011 by changing "20" to "21" and "1974" to "1977."

153. Amend the last line in the first vertical column o.f Table C-1 by changing "74" to "77."

154. Amend C-201 by ending the paragraph after "concerned."


155. Amendheading of D- 12 by adding "or Mounded" between "Un- derground" and "Containers."

156. Amend D-120 by adding "or mounded" between "underground" and the comma.

157. Amend D- 141 by changing "5-year" to "10-year."

158. Amend E-O00 by adding "explains the basis for Table 4-2," between "appendix" and "includes"; adding, "Table E- l ," between "table" and "an d " ; bysubstituting "permissible LP-Gas content of" .for "quantities to be loaded into"; and by substituting "Tables 4-3, 4-4 and 4-5.".for "412 and Table 4-1, and includes graphs for quick reference."

159. Add a new E-1 as .follows and renumber existing E-1 and. E-2 as E-2 and E-3:

F_,-1. BASIS F O R D E T E R M I N A T I O N LP-GAS C O N T A I N E R CAPACITY

E-10. The basis for determination of the maximum permitted filling .densities shown in Table 4-2• is the maximum safe quantity which will assure that the container will not become liquid full when the liquid is at the highest anticipated temperature.

(a) For portable containers built to DOT-specifications and other aboveground containers with water capacities of 1,200 gallons or less, this temperature is assumed to be 130 F.

(b) For other aboveground uninsulated containers with water capacities in excess of 1,200 gallons, including those built to D O T portable or cargo tank specifications, this temperature is assumed to be 115 F.

(c) For all containers installed underground, this temperature is assumed to be '105 F.

160. Amend E-20 (existing E-IO) by placing a period after "Con- dition" • and adding "(60 F and equilibrium pressure)."

161. Amend E-200 (existing E-IO0) by adding "a given quantity of" between "of" and "LP-Gas" ; by adding "in a container" between

. "LP-Gas liquid" and "is"; by ¢ubstituting "often used" for "manda- tory"; adding ", in some cases," between-"and" and " t o " ; by deleting "or measured"; and by adding "what it would be at" between " to" and "60 F."

1 w

58--31 AMENDMENTS TO NFPA 58 COMMITTEE ON LIQUEFIED PETROLEUM GASES 58-32

162. Amend E-30 (existing E-20) by substituting "Liquid LP-Gas Content of" .for "Volume to Fill into" and by adding "GivenS' between "Any" and "Temperature."

163. Amend E-300 (existing E-200) by substituting "maximum.liquid LP-Gas content of any" .for "quantity of any LP-Gas whichmay be placed in a"; substituting "filling" for "loading"; deleting "for that particular LP-Gas"; and substituting "4-3, 4-4 and 4-5" .for "412 and Table 4-1."

164. Amend E-301 (existing E-201) by substituting "which may" .for "to'" in the description o.f V= under the formulae.

165. Amend E X A M P L E 1 in E-307 (existing E-201) by substituting "liquid content," .for "volume"; substituting "of container capacity, for" for "which may be placed in"; adding .".liquid" between. "a" and "temperature"; changing "Table 4-1" to "Table 4-2"; and changing "0.840" to "0.838", "84%" to "83%" and "420" to "415."

166. Amend E X A M P L E 2 in E-301 (existing E-201) by substituting "liquid content," .[or "volume" ; substituting "of container capacity, for" for "which may be placed in"; adding "liquid" between "a" and "temperature"; changing "Table 4-1" to "Table 4-2"; and by changing "91.5°-/o" to "91%" and "27,450" to "27,300."

167. Delete existing E-21 and Graphs E-1, E-2 and E-3.

168. Label existing table on page58-154, "Table E-I."

169. Amend heading of E-31 (existing E-22) by ending it after "Con- tainers."

170. Amend E-310 (existing E-220) by changing the first sentence to read "Containers equipped only with fixed maximum level gages or only with variable liquid level gages, when: temperature de- terminations ~ire not practical, may be filled with-either gage provided the fixed maximum liquid level gage is installed, o r the variable gage is set, to indicate ~he.volume equal to the maximum permitted filling density, as provided in 4422(a)."; and by changing "assumption" in the second sentence to "basis.."

171. Amend E-311 (existing E-221) by deleting "to"; by substitut~'ng "may be filled with liquid'~.f0r "to fill" ; "changing "E-201" to "E-301" ; changing "Table 4-1" to "Table 4-2" ;. and by deleting the second sentence .from the description o.f G under the .formula.

172. Amend the E X A M P L E in E-311 (existing E,221) 'by adding "of LP-Gas" between "volume" and "which"; rdocating "with a specific gravity of 0.550" to between "LP-Gas" and "which'-';.by deleting "placed"; deleting "to be"; changing "Table 4-1" to '!Table ~ 4-2"; and by changing "84.4%" to "84%" and "834" to "830."

173. Amend the first sentence of E-312 (existing E-222) by changing "of" to "in"; changing "E-221" to "E-311," deleting 'normally"-; and by adding "in this example." a.fter "percent2'

i74. Delete the remainder o.f existing E-222 and Table E-2. -

.175. Amend E-320 (existing E-230) by deleting "at which',', adding "should" between "such" and "gages"; adding "for" between "indicate" and "the"; changing "loading" to "filling" ; " and by changing "Table 4-1" to "Table 4-2" and "4125(a)" to "4422(a)-."

176. Amend E-321 (existing E-231) by changing "shall'.' to "should"; changing "E-201" to "E-301";. by adding "should" between "gage" and "indicates"; and by changing "indicates" to "indicate.'"

177. Amend E-322 (existing E-232) by changing "'E-201 a' ti~ "E-301"; by deleting "volume 'of"; by substituting "content of" for "which may be placed in"; and by changing "Table 4-1" t0"Table 4-2" (two places) and "4125(b)" to "4222(a)."

178. Amend EXAMPLES 1 and 2 in E-322 (existing E-232) by changing "Table 4-1" to "Table 4-2" and "4125(a)" to ~'4422(a)."

179. Delete existing E-233. l i t ~0


180. Add a new Appendix F as Jollows:

A P P E N D I X F

W A L L T H I C K N E S S O F C O P P E R T U B I N G

Table F-I

Wall Thickness of Copper Tubing (Standard Specification for Copper Water Tube, ASTM B88-75)"

Nominal Wall Thickness, Inches Standard Size Nominal OD Inches Inches T~Te K Ty]pe L

¼ 0.375 0.035 0.030 a/~ 0.500 0.049 0.035 ½ 0.625 0.049 0.040

0.750 0.049 0.042

0.875 0.065 0.045

Table F-2

Wall Thickness of Copper Tubing (Standard Specification for Seamless Copper Tubing for

Air Conditioning and Refrigeration Field Service, ASTM B280-75a)

Standard Size Outside Diam. Wall Thickness Inches Inches Inches

0.250 0.030 0.312 0.032

a/~ 0.375 0.032 1/2 0.500 0.032

0.625 0.035 0.750 0.035 0.750 0.042

T/~ 0.875 0.045

AMENDMENTS TO NFPA 59 59-1

Part II

Proposed Amendments to the Standard for the Storage and Handling of

Liquefied Petroleum Gases at Utility Gas Plants

NFPA 59-1 976

1. Add a new 121 as follows and renumber existing 121 through 123 as 122 through 123:

121. I t is recognized t h a t a d v a n c e m e n t in eng ineer ing and i m p r o v e m e n t s in e q u i p m e n t m a y resu l t in e q u i p m e n t f a b r i c a t i o n m e t h o d s and o p e r a t i n g p rac t i ce s which differ , f rom those spe- c i f ical ly ca l led for in th i s s t a n d a r d . Yet, such d e v i a t i o n s or i m p r o v e m e n t s m a y p r o v i d e des i rab le sa fe ty a n d c o m p a t i b l e op- e r a t i on m e e t i n g the i n t en t . o f th i s s t a n d a r d . Such d e v i a t i o n s m a y be a c c e p t e d when the a u t h o r i t y h a v i n g j u r i sd i c t i on has m a d e a spec ia l i n v e s t i g a t i o n of all f ac to r s and , based on sound exper ience and eng ineer ing j u d g m e n t , conc ludes t h a t the p r o p o s e d d e v i a t i o n s m e e t t he i n t e n t of th i s s t a n d a r d .

2. Amend Section 13 as follows:

Add definition of " A P P R O V E D " and footnote as follows:

A P P R O V E D . A c c e p t a b l e to the a u t h o r i t y h a v i n g ju r i s - d ic t ion .

1The National Fire Protection Association does not approve, inspect or certify any installations, procedures, equipment or materials; nor does it approve or evaluate testing laboratories. In determining the acceptability of installations or procedures, equipment" or materials, the authority having jurisdiction may base acceptance on compliance with" NFPA or. other appropriate standards. In the absence of such standards, said authority may require, evidence of proper installation, procedure or use. The authority having jurisdiction may also refer to the listings or labeling practices oflan organization concerned with product evaluations which is in a position to determine compliance with appropriate standards for the current production of listed items.

B A R R E L . Existing 136 with the first se.ntence amended to read."

B A R R E L . A un i t of v o l u m e .

B U R I E D . Existing first sentence only of 134 amended to read:

59-2 COMMITTEE ON LIQUEFIED PETROLEUM GASES

B U R I E D . Installations in which . . . remainder unchanged.

BURIED, P A R T I A L L Y . Existing second sentence only of 134 amended to read:

B U R I E D , P A R T I A L L Y (or Mounded). Installations in which . . . remainder unchanged.

CONTAINERS. Existing 131 amended to read:

C O N T A I N E R S . Vessels, such as . . . remainder unchanged.

CONTAINERS, FIELD ERECTED. Existing 133(b) amended by ending the sentence after "location."

CONTAINERS, SHOP FABRICATED. Existing 133(a) amended by ending the sentenceafter "conditions."

GAS. Existing 130 amended to read:

GAS. Liquefied petroleum gases . . . remainder unchanged.

GAS-AIR MIXER. Existing 137 amended to read:

GAS-AIR M I X E R . A device, or system of . . . remainder . . . . . L . . . . . - 7

"~,'lbGIbCbIb~g(.b,

Add definition of " L A B E L E D " as follows:

L A B E L E D . Equipment or materials to which has been attached a label, symbol, or other identifying mark of an organization acceptable to the authori ty having jurisdiction and concerned with product evaluation, tha t maintains periodic inspection of production of labeled equipment or materials and by whose labeling the manufacturer indicates compliance with appropriate standards or performance in a specified manner.

Add definition of " L I S T E D " and footnote as follows:

L I S T E D . Equipment or materials included in a list pub- lished by an organization acceptable to the authori ty having jurisdiction and concerned with product evaluation, tha t maintains periodic inspection of production of listed equipment or materials and whose listing states either tha t the equipment or material meets appropriate standards or has been tested and found suitable for use in a specified manner. 1

1 The means for identifying listed equipment may vary for each organization concerned with product evaluation, some of which do not recognize equipment as listed unless it is also labeled. The authority having jurisdiction should utilize the system employed by the listing organization to identify a listed product.


PSIG and PSIA. Existing 135 amended to read:

' PSIG and PSIA. Pounds per square inch gage and . . . remainder unchanged.

Add definition of "SOURCES OF I G N I T I O N " as follows:

SOURCES OF I G N I T I O N . Devices or equipment which, because of their modes of use or operation, are capable of providing sufficient thermal energy to ignite flammable LP-Gas vapor-air mixtures when introduced into such a mixture or when such a mixture comes into contact with them, and which will permit propagation of flame away from them.

SYSTEMS. Existing 132 amended to read:

SYSTEMS. An assembly of . . . remainder unchanged.

8. Amend Footnote 2 to 140 by changing "a nationally recognized" to "an approved" in the second sentence, amending the third sentence to read "Experience has shown tha t ethyl mercaptan in the ratio of 1.0 pound per lO,OO9 gallons of liquid LP-Gas has been recognized as an effective odorant ," and by adding a new fourth

"Research* on odorants has shown that thiophane (tetrahydrothiophene) in a ratio of at least 6.4 pounds per 10,000 gallons of liquid LP-Gas may satisfy the requirements of 140."

*"A New Look at Odorization Levels for Propane Gas," BERC/RI-77/1, United States Energy Research & Development Administration, Technical Information Center, September, 1977. Available from National Technical Information Service, U.S. Dept. of Commerce, Springfield, VA 22161.

4. Amend heading of 15 by changing "Approved" to "Accept- ance."

5. Amend 150 by adding "be approved (see Section 13, AP- P R O V E D ) . " after "shall" in thefirst sentence (ending the sentence thusly, and deleting 150(a) and (b).

/

6. Amend 210 by changing "UG-135" to "UG-136."

7. Amend the second column in Table 2 by changing the date of the A S M E Code from "1974" to '1977."

8. Amend Note 1 of Table 2 by deleting " - 1976." b,J

~9"-'4 COMMITTEE ON LIQUEFIED PETROLEUM G A S E S


10. Add a new 251 and two footnotes as follows and renumber existing 251 through 255 as 252 through 256.

251. In addition to "the applicable provisions for horizontal ASME storage containers, vertical ASME storage containers over 2,000 gallons water capacity shall comply with 251 (a) through (e).

(a) Containers shall be designed to be self-supporting without the use of guy wires and shall satisfy proper design criteria taking into account wind, seismic (earthquake) forces, and hydrostatic test loads.

(b) Design pressure (see Table 2) shall be interpreted as the pressure at the top head with allowance made for increased pressure on lower shell sections and bottom head due to the static pressure of the product.

(c) Wind loading on containers shall be based on wind pressures on the projected area at various height zones aboveground as recommended in Building Code Require- ments for Minimum Design Loads in Buildings'and Other Structures, ANSI A58.1 (1972). 1 Wind speeds shall be based on a Mean Occurrence Interval of 100 years.

(d) Seismic loading on containers shall be based on forces recommended in the Uniform Building C o d e - 1976 Edi- tion (UBC-1976). 2 In these areas identified as zones 3 and 4 on the Seismic Risk Map of the United States, Figures 1, 2 and 3 of Chapter 23 of the UBC-1976, a seismic analysis of the proposed installation shall be made which meets the approval of the authority having jurisdiction.

(e) Containers shall be fabricated with lifting lugs or some other suitable means to facilitate erection in the field.

1 Available from American National Standards Institute, 1430 Broadway, New York, N.Y. 10018.

Available from International Conference of Building Officials (ICBO), 5360 South Workman Hill Road, Whittier, CA 90601.

11. Amend the first sentence of 310(a) by changing "1974" to "1977."

12. Amend the second sentence of" 310(a) by changing "API Standard 620" to "ANSI/API 620-1977."


13. Amend 310(b) by changing "API Standard 620" to "ANSI / API 620" and by changing "1973" to "1977."

14. Amend 312 by changing "API 620" to "ANSI/API 620."

15. Amend 410 by changing "Petroleum Refinery Piping, 1973" to "Chemical Plant and Petroleum Refinery piping-1976."

16. Amend 412 by changing "323.3" to "323.4.2" and by changing "1973" to "1976."

17. Amend 421 by adding the following three sentences:

"The valves shall be readily accessible for operation and mainte- nance under normal and emergency conditions, either because of location or by means of permanently installed special provisions. Valves installed in an unobstructed location not more than 6 feet above ground level shall be considered accessible. Special provisions include, but are not limited to, stairs, ladders, platforms, remote operators or extension handles."

18. Amend 445 by starting the first sentence with, "When used, the" and by starting the second sentence with, "The length or location of the fixed tube to indicate".

19. Amend 451(a) by changing "identified" to "marked with" and by adding "and with the working pressure in psig" between "LPG" and "at".


(b) Hose assemblies, after the application of connections, shall have a design capability of withstanding a pressure

• of not less than 700 psig. If a test is made, such assemblies shall not be leak tested at pressures higher than the working pressure (350 psig minimum) of the hose.

21. Amend 630 by adding the following sentence:

"ASME containers for LP-Gas shall be equipped with spring- loaded safety relief valves conforming with applicable requirements of the Standard on Safety Relief Valves for Anhydrous Ammonia and LP-Gas, UL 132; Standards for Safety Relief Valves of the Factory Mutual Research Corporation; or other equivalent safety relief valve standards."

b.J

~--6 COMMITTEE ON L I Q U E F I E D P E T R O L E U M GASES

22. Amend Table 6 by changing "API Standard 620" to "ANSI/ / API 620."

23. Amend 660 by substituting the following two sentences for the existing second sentence:

"Hydrostatic relief valves shall have pressure settings not less than 400 psig or more than 500 psig unless installed in systems designed to operate above 350 psig. Hydrostatic relief valves for use.in systems designed to operate above 350 psig shall have settings not less than 110 percent or more than 125 percent of the system design pressure."

24. Delete Section 67 in its entirety.

25. Amend the daggered note in Appendix D by changing "444 ''r to "445."

$,J

-report of committee on - nfpa · 77. amend table 2-1 by changing the date of the asme code from...

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