uniform north american requirements

UNIFORM NORTH AMERICAN REQUIREMENTS

(UNAR)

for

Toilet Fixtures

Guidelines and Specifications

Version 1.2

January 30, 2006 (Revision 1: March 9, 2006)

(Revision 2: January 2, 2007)

by:

Bill Gauley John Koeller Veritec Consulting Inc. Koeller and Company 1495 Bonhill Rd., Unit 12 5962 Sandra Drive Mississauga, ON L5T 1M2 Yorba Linda, CA 92886-3557 Phone (905) 696-9391, ext. 102 Phone (714) 777-2744 [email protected] [email protected]

UNAR

Uniform North American Requirements Toilet Fixtures

Uniform North American Requirements (UNAR) for Toilet Fixtures – Version 1.2 January 2, 2007

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Table of Contents

Background Page 3

What is UNAR? 3

Who sponsored UNAR development? 3

Who is developing UNAR? 3

What comprises UNAR? 4

The UNAR specification and performance requirements 4

Qualified testing laboratories 5

Compliance reports 5

Interpretations 5

Attachment A – Waste Removal and Performance Testing Protocol 6

Attachment B – Sample Report - Data Sheet 9

Attachment C – Trim Adjustability Testing Protocol 10

Appendix A to Attachment C – Test Protocol - Fill Valve Integrity Test 15

Attachment D – Contact Personnel 16

© Gauley and Koeller, Veritec Consulting, Inc. 2003-2007


Uniform North American Requirements (UNAR) for Toilet Fixtures - Version 1.2 January 2, 2007

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Background

Plumbing industry and water conservation professionals generally agree the current patchwork of toilet specifications, requirements, and “approved toilet lists” promulgated by water authorities in the U.S. and Canada do not always serve the cause of water conservation in the most effective way. Nor do they take advantage of new innovative technologies and the highly competitive market environment that exist within the plumbing industry. As a consequence, there has been some confusion in the marketplace and, in some cases, a very limited availability of qualified products. Therefore, at the suggestion of various members of the plumbing industry, water conservation representatives of several large water suppliers initiated an effort to develop a uniform set of minimum requirements for toilets subsidized through their water conservation programs. The result of this effort, the Uniform North American Requirements (UNAR) for toilet fixtures, would, at a minimum, serve the following goals:

• Assist and work with the plumbing industry in the development of superior products that:

meet customer expectations for flushing performance, and sustain water savings over life of fixtures by restricting maximum flush volumes.

• Base minimum flushing performance requirements on published medical data.

What Is UNAR?

UNAR is a voluntary system for qualifying toilet fixtures that can be adopted by water authorities desiring to:

• achieve sustainable water savings from toilet fixture replacements, and • ensure a high level of customer satisfaction with flushing performance.

Who sponsored UNAR development? Sponsorship funding of UNAR development was provided by the following water suppliers/agencies:

U.S.A. Canada • East Bay Municipal Utility District, California • City of Toronto, Ontario • San Diego County Water Authority, California • Durham Region, Ontario • Los Angeles Department of Water & Power, California • Waterloo Region, Ontario • Tampa Bay Water, Florida • Peel Region, Ontario • California Urban Water Conservation Council, California • City of Calgary, Alberta

Who is developing UNAR? The process of developing and communicating UNAR is being carried out by the UNAR Administrator, Mr. Bill Gauley, Veritec Consulting Inc., and Mr. John Koeller, Koeller and Company. An Advisory Panel, self-selected in 2004, assists and provides important counsel on various elements of UNAR, reviewing UNAR protocols, and serving as a communications link to their respective organizations and industries. That panel consists of eight members, four each from the plumbing industry and the water suppliers:



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• Burt Preston, Plumbing Industry Consultant • Peter DeMarco, American Standard • David Viola, Plumbing Manufacturers Institute • Shabbir Rawalpindiwala, Kohler Co. • Glen Pleasance, Region of Durham, Ontario • David Broustis, Seattle Public Utilities • Tom Gackstetter, Los Angeles Department of Water &

Power • Dave Bracciano, Tampa Bay Water

The UNAR specification and performance requirements The UNAR specification is supplementary to the minimum requirements established within the following national standards:

• American Society of Mechanical Engineers A112.19.2-2003 and A112.19.5-2005 • Canadian Standards Association B45 Series-02, Plumbing Fixtures

UNAR combines elements of two successful toilet fixture testing programs: Maximum Performance (MaP) testing1 and the Los Angeles Supplementary Purchase Specification (SPS) requirements2.

Both the MaP and the SPS have been instrumental in driving the development of high-performance toilet fixtures with sustainable water savings. Combined into UNAR, they improve the ability of the plumbing industry and the water suppliers to achieve continuing water savings through satisfied customers.

For a toilet fixture model to be considered for qualification or certification as UNAR-compliant it must satisfy the following criteria:

• Waste removal performance test described herein in Attachment A. • Tank trim adjustability test3 described herein in Attachment C.

Compliance to UNAR may be achieved at either one of two performance levels: UNAR or UNAR HET. Performance requirements are as follows:

1 Gauley and Koeller, Maximum Performance Testing of Popular Toilet Models, Sixth Edition, January 2006. Available on California Urban Water Conservation Council website: http://www.cuwcc.org/MapTesting.lasso

2 Complete requirements of Los Angeles Supplementary Purchase Specification, and current listings of fixtures qualified to the specification, available on California Urban Water Conservation Council website: http://www.cuwcc.org/products_tech.lasso Note that UNAR does not include elements of the SPS related to flush valve seal durability and labeling, since these requirements have been adopted into the ASME/ANSI standard A112.19.5-2005, approved by ANSI on November 29, 2005. 3 Based upon the Los Angeles Department of Water and Power Supplementary Purchase Specification (LADWP SPS), version dated November 16, 2005, included herein as Attachment C, but revised to reflect the deletion of certain trim durability and marking requirements incorporated into ASME A112.19.5-2005.



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Criteria UNAR UNAR HET Minimum waste removal – flush performance per Attachment A 350 grams 350 grams4

Tank trim adjustability compliance per Attachment C Required Required

Maximum effective flush volume 1.6 gallons – 6.0 litres 1.28 gallons – 4.8 litres5

Qualified testing laboratories The UNAR Administrator seeks to enlist the support of qualified laboratories to perform the tests called for by this specification. While testing to the requirements described in Attachment C can be conducted by a number of laboratories recognized by IAPMO Research and Testing (R&T), current capabilities for testing to the requirements described in Attachment A are much more limited. It is the intent of the UNAR Administrator to assist other recognized laboratories to become approved to perform the testing called for in Attachment A.

To date, the following organizations perform the testing:

Waste Removal

Performance Testing (Attachment A)

Tank Trim Adjustability Testing

(Attachment C) IAPMO R&T-recognized

laboratories approved for testing to ASME A112.19.2, SPS, and MaP,

and

Existing laboratories approved for testing

Veritec Consulting Inc.

IAPMO R&T-recognized laboratories approved for testing to

ASME A112.19.2 and SPS

Future laboratories Additional certified labs trained in

MaP testing and approved by IAPMO R&T

Additional certified laboratories approved by IAPMO R&T

Compliance reports Comprehensive data sheets for each toilet model tested to UNAR will be posted on a website and available for downloading without restriction (see Attachment B). Initially, it is anticipated that the California Urban Water Conservation Council will be one of the website hosts.

Interpretations Interpretations of this specification, or any of the elements therein, will be rendered by the UNAR Administrator upon request, after consulting as necessary with the Advisory Panel. Contacts for this purpose are listed in Attachment D.

4 The 350 gram waste removal requirement shall apply only to the “full flush” option on dual-flush HET fixtures. No solid waste removal requirement applies to the “short flush” option on these products. 5 “Effective” flush volume for dual-flush HET fixtures is defined as the average flush volume of two (2) reduced or “short flushes” plus one (1) “long flush”. This ratio of “short” to “long” flushes is consistent with actual practice in the field as demonstrated by various studies conducted in the U.S. and Canada. All single-flush HET fixtures shall achieve an average flush volume of 1.28 gallons or less when tested in accordance with ASME/ANSI A112.19.2-2003.



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Attachment A Uniform North American Requirements (UNAR) for Toilet Fixtures

Waste Removal and Performance Testing Protocol Version 4 - Revised January 2, 2007

1.0 Scope of Testing 1.1 Toilet model performance is identified as either a Pass or a Fail depending upon

whether the test fixture can successfully and completely clear all media from the fixture in single flush in at least four of five attempts.

1.2 Tests where toilet sample clogs, plugs, or fails to restore a minimum of a 2-in. (50mm) trap seal following each flushing test will be deemed a failed test.

1.3 MaP test media is comprised of the following: 1.3.1 Seven (7) test specimens at 50 ± 4g test specimen (“test specimen”) consisting

of soybean paste contained in latex casing, tied at each end forming a ‘sausage’ approximately 100 ± 13mm in length and 25 ± 6mm in diameter6, and

1.3.2 Four loosely crumpled balls of toilet paper (“paper”).

2.0 Testing Protocol 2.1 Fixture Model Selection

2.1.1 A single randomly selected sample of each toilet model (“sample”) is required for testing.

2.1.2 Results for toilet samples that do not represent typical production models (e.g., prototypes) will not be included in UNAR reports nor be posted on the UNAR website.

2.2 Set-Up

2.2.1 Samples shall be assembled according to manufacturer’s written instructions as contained within the product packaging, and placed on test rig, ensuring tank and bowl are level.

2.2.2 Tank water level shall be adjusted to the level specified by manufacturer in the manufacturer’s instructions (e.g., set to waterline).

2.2.3 Static water supply pressure shall be set to 50 ±3 PSIG. 2.2.4 Inlet water temperature shall be 18 to 27 oC (65 to 80oF). 2.2.5 Flush sample a minimum of three times prior to commencement of testing. 2.2.6 Re-adjust tank water level to proper level if required.

2.3 Flush Volume Measurement 2.3.1 Measure and record flush volume of sample (sample set-up as outlined in

Section 2.2). A receiving vessel may be used, either calibrated in increments not exceeding 0.10 L (0.025 gal) or placed on a load cell with a readout in increments not exceeding 0.10 L (0.025 gal). Other methods capable of measuring volumes to within in 0.10 L (0.025 gal) shall be acceptable.

6 approximately 4 ± 0.5 inches in length and 1 ± 0.25 inches in diameter



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2.3.2 Samples with measured flush volumes in excess of 0.5 litres (0.13 gallons) greater than their rated flush volume shall be deemed to fail testing requirements due to excessive flush volume.

2.3.3 Samples with measured flush volumes less than 0.5 litres (0.13 gallons) greater than their rated flush volume shall be adjusted, if possible, to their rated flush volume prior to performance testing.

2.3.4 Samples with measured flush volumes less than their rated flush volume shall be tested at measured volume and this volume shall be recorded on test report.

2.4 Waste Extraction Test 2.4.1 Test specimens shall be formed by hand such that they are roughly cylindrical

in shape and uniform in diameter 2.4.2 A test specimen drop guide shall be placed across the top of the bowl, with the

centerline of a 50mm (2-in.) diameter opening 15 cm (6 in.) in front of the center of the seat post holes, equidistance from each hole. Drop guide may be made of rigid material (e.g., plastic), not more than 12mm (0.5-in.) thick, and be of sufficient length to span top of toilet bowl.

2.4.3 Seven (7) test specimens (total of 350g) shall be freely and individually dropped in a vertical orientation through opening in drop guide into bowl..

2.4.4 Remove drop guide and freely and randomly drop four balls of crumpled toilet paper over centre of the bowl water surface.

2.4.5 Wait 10 ± 1 seconds. 2.4.6 Flush toilet sample. Collect discharged media in strainer or other suitable

container positioned below toilet fixture. 2.4.7 Record test as Pass or Fail (test is Fail if any waste remains in bowl or trap, or

if minimum 50mm (2-in.) trap seal has not been restored). 2.4.8 Remove (rinse) discharged toilet paper from test specimens, and prepare test

specimens for further testing. 2.4.9 Flush toilet sample to clean bowl and trapway and fully restore trap seal. 2.4.10 Repeat testing until toilet sample either (i) achieves four Pass grades or (ii)

achieves two Fail grades. 2.4.11 Models must achieve a Passing score in at least four of five attempts to

qualify for UNAR. 3.0 Test Media Specifications

3.1 Soybean paste nominal specifications: • 35.5% water, 33.8% soybean, 18.5% rice, and 12.2% salt, and having a density of

1.15 ± 0.10 g/mL (i.e., density greater than that of water).

3.2 Latex casing specifications: • Casings made from non-lubricated latex condoms (LifeStyles® brand, purchased

from Ansell Healthcare Products LLC, Dothan, AL 36303 USA). 3.3 Cord used to tie casing:



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• 1.0mm diameter polymer cord that will not crack or harden with time (Stretch Magic Bead & Jewelry Cord, Pepperell Braiding Company, P.O. Box 1487, Peperell, MA 01463, 800-343-8114)

3.4 Cased test specimens: • Each test specimen shall have a mass of 50 ± 4g. • Test specimens must be able to span clear distance of 76mm (3-in.) for minimum of

15 seconds when tested at room temperature (setup illustrated in Figure 1). • Test specimens with rips, tears, punctures, or other damage, shall not be used. • Test specimens may contain small volumes of air, however, specimens that float

shall not be used.

3.5 Recommendations for storage of cased test specimens: • Test specimens should be stored in air-tight containers and refrigerated (4 ± 4C or

39 ±7F) when not in use. A damp sponge should be placed in bottom of container to prevent test specimen drying.

3.6 Toilet paper specifications: • Each ball of paper is comprised of six sheets of single ply toilet paper conforming to

ASME A112.19.14–2001, section 3.2.5.1.2.

NOTE Cased test specimens (ready-to-use) may be purchased from: Veritec Consulting Inc. 1495 Bonhill Road, Unit 12 Mississauga, Ontario, Canada L5T 1M2 Phone (905) 696-9391, ext. 105 Fax (905) 696-9395 [email protected]

76mm span

3 inch span

Figure 1

Cased Media



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Attachment B SAMPLE REPORT (TYPICAL) – DATA SHEET

(for posting, viewing, and downloading on the web) Uniform North American Requirements (UNAR) for Toilet Fixtures

Report Number: xx-xxx Report Date: January 25, 2006 Client: XXX Plumbing Co. Date Tested: January 16, 2006 1234 Main Street Capital City, PA 15646 Contact: John Smith Make: Potty King Model: Throne II, Convenient height (1234-01 bowl, 1234-02 tank) Source of Samples: Manufacturer, arrived in good condition Sample Description: Vitreous China, 1.6-gallon/6-litre, close-coupled, gravity, elongated bowl, unlined HET: No Fill Valve: ABC Anti-Siphon Pilot Valve Flush Valve: XYZ with Model 123 flapper Physical Parameters:

• Top of overflow tube: 6 inches / 150 mm from inside bottom of tank. • Water level marking: 6.75 inches / 171 mm from inside bottom of tank • Lowest tank water level during flush (from bottom of tank): 2.55 inches / 65 mm • Trap Size: 2 inches / 50 mm • Flapper Chain: metal link • Refill restrictor: white, 0.125 inches / 3 mm inside diameter • Flapper part no. xxxxxxxxxxxxxxxxxxx • Flapper Baffle: orange, 0.375 inches / 9.5 mm inside diameter • Tank Dimensions: 22.0 L x 9.5 W x 11.25 H (inches), 560 L x 241 W x 286 H (mm)

1. Listing: unit conformed to ASME A112.19.2-2003, A112.19.5-2005, and CSA B45 PASS 2. Flush volume at water line with OEM trim: 1.57 gallons / 5.94 litres 3. Minimum solid waste removal: Tested per Attachment A PASS 4. Maximum Flush Volume Under Maximum Adjustments: Tested per Attachment C PASS



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Attachment C Uniform North American Requirements (UNAR) for Toilet Fixtures

Trim Adjustability Testing Protocol Sections I, II, III, and IV of the following requirements shall apply to tank-type gravity toilets. Sections I, II, and V of the following requirements shall apply to tank-type flushometer (pressure-assist) and tank-type electrohydraulic toilets.

1.0 Scope and Objective

This specification establishes the maximum flush volume of toilet fixtures when adjustments are made to the trim components and/or the mechanisms that control flush action. Its purpose is to help to ensure sustainable, efficient water use for the life of the fixture. It is applicable to:

• single-flush, tank-type gravity toilets; • dual-flush, tank-type gravity toilets; • dual-flush, tank-type flushometer tank (pressure-assist) toilets, • tank-type, flushometer tank (pressure-assist) toilets, and • tank-type electrohydraulic toilets.

2.0 Summary of Criteria

To qualify under the program, toilets must meet criteria in two areas:

Conform to fill valve requirements related to the maintenance of consistent water levels in the toilet tank. Applies to all gravity toilet fixtures.

Conform to adjustability requirements related to long-term maintenance of flush

volumes. Applies to all toilet fixtures. Conformance with these criteria must be established through independent laboratory testing, as specified in Section 6.0. A single, untested, randomly selected sample of each toilet model (“sample”) is required for testing, such sample being taken from the packed inventory of the manufacturer. The sample must conform to all applicable criteria. 3.0 Fill Valve Requirements All gravity toilet fixtures shall conform to fill valve requirements as follows:

The fill valve shall be of the pilot valve type only OR, alternatively, the fill valve shall be classified “Compliant” after being subjected to the test protocol included in Appendix A. The UNAR Administrator must be provided hard copy documentation showing that a non-pilot valve type fill valve is classified as “Compliant” before the subject toilet may be certified as meeting this specification.



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4.0 Adjustability of Gravity Tank Trim Components All gravity toilet fixtures shall conform to requirements regarding tank trim as follows:

4.1 Any barrier, bucket, “dam”, displacement device, etc., used in a toilet tank to affect flush volume shall be tamper-resistant and permanently affixed to the tank (i.e., any device that can be tampered with or removed such that the toilet can be made to flush with greater than 2.0 gallons when tested in accordance with Section B below shall be deemed noncompliant).

NOTE: A manufacturer or its representative may, at its option, submit proposed tank designs to the UNAR Administrator for evaluation prior to production. Should the submitting party designate those designs as proprietary, all information and ensuing discussions will be kept confidential. The UNAR Administrator will render a written decision on compliance with this requirement within 15 working days of receipt.

AND 4.2 Supplementary requirements regarding adjustability and flush performance for original

equipment and after-market flush valve seals shall be as follows:

4.2.1. For Original Equipment The following test procedure shall be followed to verify that the toilet model meets these requirements: Purpose of Test: The objective of this Adjustability Test is to determine the upper limit to the volume of water that may be discharged by the field adjustment of tank trim components.

Test shall be conducted per section 8.4 of ASME A112.19.2-2003 with the following modification:

Test procedure: a. The toilet shall be installed on a leveled test stand and all adjustable tank trim

components (any field adjustment features in the tank that might increase the toilet flush volume) shall be adjusted to the maximum water use setting, while taking care not to damage or alter the parts.

b. The water level in the tank shall be set to 0.25 inches +/- 0.06 inches below the top of the overflow tube. Where the tank utilizes an internal containment vessel and does not possess an overflow tube, the vessel shall be filled to a level 0.25 inches +/- 0.06 inches below the top rim of the vessel or to the manufacturer’s designated water line, whichever is higher.

c. The static pressure of the water supply shall be adjusted to 80 PSI +/- 2 PSI. d. The toilet shall be flushed maintaining the activator in the flushing position for a

period of one (1) second, the water being drained into a container. e. After the flush cycle is complete, the total flush volume shall be observed and

recorded. f. This procedure shall be repeated until five (5) sets of data are obtained.



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g. The static pressure of the water supply shall be adjusted to 20 PSI +/- 2 PSI or at the manufacturer’s recommended minimum pressure as noted in the product literature and product packaging, and test procedure steps d. through f. shall be repeated.

NOTE: For dual-flush toilet fixtures, this test shall be conducted at both flush modes (full flush and reduced flush). Report: The five (5) individual flush volumes and the average of the five (5) runs shall be reported for each of the two static water supply pressures specified. Performance Requirement: The average total flush volume for five (5) test runs for each of the two static water supply pressures shall not exceed the following: For single-flush fixtures rated at 1.3 to 1.6 gallons per flush – 2.00 gallons per flush

For single-flush fixtures rated at 1.28 gallons per flush or less – 1.38 gallons per flush For dual-flush fixtures: Reduced flush (“short flush”) mode – 1.10 gallons per flush Full flush mode – 2.00 gallons per flush

NOTE: The volume of water may be determined visually using a graduated container or by weight calculated as a unit to volume unit. 4.2.2. For after-market closure seals The maximum volume of water that may be discharged by the toilet, when the original equipment flush valve seal (flapper or other sealing device) is replaced with a standard (buoyant) seal available in home improvement centers and hardware stores, and the field adjustment of tank trim is set at its maximum water-use setting, shall not exceed certain pre-determined amounts. The following test procedure shall be followed to verify that the toilet meets this requirement: Purpose of Test: The objective of this Adjustability and After-Market Seal Test is to determine the upper limit to the volume of water that may be discharged when an off-the-shelf replacement flush valve seal/flapper is installed on the toilet fixture.

Test shall be conducted per section 8.4 of ASME A112.19.2-2003 with the following modification:

Test procedure: a. The toilet shall be installed on a leveled test stand and all adjustable tank trim

components (any field adjustment features in the tank that might increase the toilet flush volume) shall be adjusted for maximum water use, while taking care not to damage or alter the parts.

b. Remove the original equipment flush valve seal and replace it with a standard (buoyant) non-adjustable after-market seal/flapper for that toilet where possible. In the case of a standard configuration 2-inch flush valve, a Fluidmaster Bullseye Super flapper (part no. 501) or a Coast Foundry Ultra Blue flapper shall be used.



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For non-standard flush valves, including 3-inch flush valves, one or more replacement seals available at hardware and building supply stores shall be used7.

c. The water level in the tank shall be set to 0.25 inches +/- 0.06 inches below the top of the overflow tube. Where the tank utilizes an internal containment vessel and does not possess an overflow tube, the vessel shall be filled to a level 0.25 inches +/- 0.06 inches below the top rim of the vessel or to the manufacturer’s designated water line, whichever is higher.

d. The static pressure of the water supply shall be adjusted to 80 PSI +/- 2 PSI. e. The toilet shall be flushed maintaining the activator in the flushing position for a

period of one (1) second maximum, the water being drained into a container. f. After the flush cycle is complete, the total flush volume shall be observed and

recorded. g. This procedure shall be repeated until five (5) sets of data are obtained. h. The static pressure of the water supply shall be adjusted to 20 PSI +/- 2 PSI or at

the manufacturer’s recommended minimum pressure as noted in the product literature and product packaging, and test procedure steps e. through g. shall be repeated.

NOTE: For dual-flush toilet fixtures, this test shall be conducted at both flush modes (full flush and reduced flush). Report: The five (5) individual flush volumes and the average of the five (5) runs shall be reported for each of the two static water supply pressures specified. Performance Requirement: The average total flush volume for five (5) test runs for each of the two static water supply pressures shall not exceed the following: For single-flush fixtures rated at 1.3 to 1.6 gallons per flush – 2.00 gallons per flush

For single-flush fixtures rated at 1.28 gallons per flush or less – 1.38 gallons per flush For dual-flush fixtures:

Reduced flush (“short flush”) mode – 1.10 gallons per flush Full flush mode – 2.00 gallons per flush

NOTE: The volume of water may be determined visually using a graduated container or by weight calculated as a unit to volume unit.

7 Where neither the Fluidmaster Bullseye Super flapper nor the Coast Foundry Ultra Blue flapper fit the flush valve, where a 3-inch flush valve is employed, or in the case of non-standard flush valve seals, the approved listing agency shall have discretion as to which after-market flapper or seal shall be used in the test.



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5.0 Adjustability of Flushometer Tank and Electrohydraulic Toilet Fixtures Tank-type flushometer toilets and tank-type electrohydraulic toilets shall have a fixed non-adjustable flush volume OR shall conform to supplementary requirements regarding flush volume adjustability.

Purpose of Test: The objective of this Adjustability Test is to determine the upper limit to the volume of water that may be discharged when tank components are adjusted to their maximum water-use setting. Test shall be conducted per section 8.4 of ASME A112.19.2-2003 with the following modification: Test procedure: a. The toilet shall be installed on a leveled test stand and all adjustable tank components (any

field adjustment features in the tank that might increase the toilet flush volume) shall be adjusted for maximum water use, while taking care not to damage or alter the parts.

b. The static pressure of the water supply shall be adjusted to 80 PSI +/- 2 PSI. c. The toilet shall be flushed maintaining the activator in the flushing position for a period of

one (1) second maximum, the water being drained into a container. d. After the flush cycle is complete, the total flush volume shall be observed and recorded. e. This procedure shall be repeated until five (5) sets of data are obtained. f. The static pressure of the water supply shall be adjusted to 20 PSI +/- 2 PSI or at the

manufacturer’s recommended minimum pressure as noted in the product literature and product packaging, and test procedure steps c-d-e shall be repeated.

Report: The five (5) individual flush volumes and the average of the five (5) runs shall be reported for each of the two static water supply pressures specified. Performance Requirement: The average total flush volume for five (5) test runs for each of the two static water supply pressures shall not exceed the following: For single-flush fixtures rated at 1.3 to 1.6 gallons per flush – 2.00 gallons per flush

For single-flush fixtures rated at 1.28 gallons per flush or less – 1.38 gallons per flush For dual-flush fixtures: Reduced flush (“short flush”) mode – 1.10 gallons per flush Full flush mode – 2.00 gallons per flush

NOTE: The volume of water may be determined visually using a graduated container or by weight calculated as a unit to volume unit.



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Appendix A to Attachment C

Test Protocol – Fill Valve Integrity Test

This requirement shall only apply to all fill valves within gravity toilet fixtures that are not otherwise classified as pilot valves.

Must conform to both of the following requirements (1 and 2):

1.0 Consistent Water Level Purpose of Test: To determine whether or not the fill valve shuts off at a consistent water level in a toilet tank independent of any change in inlet water supply pressure.

Test Procedure:

a. Install the fill valve in the toilet tank provided, install the tank on a leveled test stand, and adjust the water level per the manufacturer’s recommendation at an inlet water pressure of 20 PSI +/- 2 PSI or at the manufacturer’s recommended minimum pressure as noted in the product literature and product packaging.

b. Flush the tank to verify and mark water level after completed refill. c. Increase the inlet water pressure to 60 PSI +/- 2 PSI. d. Flush the tank. e. Measure any difference in water level after completed refill. f. Repeat steps c-d-e utilizing 80 PSI +/- 2 PSI inlet water pressure.

Performance Requirement: The fill valve shall shut off at the same water level +/- ½ inch for all three inlet water pressures. In addition, water shall not enter the overflow tube or flow out of the tank at all three inlet pressures.

2.0 Shutoff Integrity with Increased Water Pressure Purpose of Test: To determine whether or not the fill valve shuts off at a consistent water level in a toilet tank independent of changes in inlet water supply pressure. Test Procedure:

a. Install the fill valve in a toilet tank and adjust the water level per the manufacturer’s recommendation at an inlet water pressure of 20 PSI +/- 2 PSI or at the manufacturer’s recommended minimum pressure as noted in the product literature and product packaging.

b. Flush the tank to verify and mark water level after completed refill. c. Increase the inlet pressure to the fill valve from 20 (or recommended minimum pressure)

to 60 PSI, then to 80 PSI at a rate of less than 10 PSI per second.

Performance Requirement: The water level shall remain at the initial mark +/- ½ inch. In addition, water shall not enter the overflow tube or flow out of the tank.



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Attachment D

Uniform North American Requirements (UNAR) Contact personnel

UNAR ADMINISTRATOR: Mr. William Gauley, Prof. Engineer Veritec Consulting, Inc. (905) 696-9391, ext 102 [email protected] and Mr. John Koeller, Prof. Engineer Koeller and Company (714) 777-2744 [email protected] TESTING AND CERTIFICATION: IAPMO Testing and Services Mr. Ken Wijaya, Laboratory Director (909) 472-4100 [email protected] Veritec Consulting, Inc. Mr. William Gauley, Prof. Engineer (905) 696-9391, ext 102 [email protected]

uniform north american requirements

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