## Department of Energy Washington. DC 20585 

# F EB - 0 7 1996

Mr. Steve Treado KIST Building &I Fire Research Laboratory Bldg 220. Room B 114 Gaithersburg, MD 20999 Dear Mr. Treado: I am writing to invite you to attend a Department of Energy public meeting. The meeting is to be held at the Forrestal Building. 1000 Independence Avenue. SW. Room BE-069, Washington, DC on Wednesday, February 29, 1996, from 1:00 P.M. to 5:00 P.M. The Department is preparing a Notice of Proposed Rulemaking (NOPR) and would like to receive public input from interested parties before issuing the notice. The public meeting will involve discussions of statistical sampling plans for plumbing products, the relationship of statistical confidence level to variations in plumbing products resulting from the manufacturing process, mathematical rounding procedures to be used when determining compliance, and the impact.of the 1994 ASME/ANSI Standard Al 12.18.1M for "Plumbing Fixture Fittings" for reducing water flow rate. I Since the June 15. 1995, workshop, the Department received two letters from the Plumbing Manufacturers Institute (PMI), dated November 20 and December 13, 1995, proposing a sampling plan for testing products to ascertain compliance with the water usage standards, and requesting the Department to adopt the test procedures and water usage standards in American Society of Mechanical Engineers/American National Standards Institute (ASME/ANSI) Standard A 112.18. 1 M-1994, "Plumbing Fixture Fittings." Statistical Sampling Plans PMI proposes that "Two samples selected at random shall be tested to the ASME/ANSI test procedures for consumption. The water consumption of both devices shall be less than or equal to the requirements of EPAct. If any sample exceeds the maximum water consumption, eight additional samples shall be selected at random. The average of all eight samples shall not exceed the requirements of EPAct. Each category, without regard to differences in cosmetic design or finish, shape or color, shall be grouped as defined in the basic model definitions."

### While it is difficult to predict in advance the number of units needed to be tested,.based on our

consideration of the data submitted by PMI, which includes the attached hypothetical calculation for water closets, the Department believes the sampling plan proposed by PMI will result in-more testing than other plans considered by the Department. The Department believes the following sampling plan "ill yield more statistically valid results and would be less burdensome to manufacturers- to conduct: For each basic model of faucet, a sample of sufficient size shall be -tested to ensure that any represented value - of water-consumption shall be no less than the higher of (A) the mean value of the sample or (B) the upper 95 percent confidence limit of the - true mean value divided by 1.05. For each basic model of showerhead, a sample of sufficient size shall be tested to ensure that any represented value of water consumption shall be no less than the-higher of (A) the mean value of the sample or (B) the upper 95 percent confidence limit of the true mean value divided by 1.05. For each basic model of water closet, a sample of sufficient size shall.be tested to ensure that any represented value of water consumption shall be no less than the higher of (A) the mean value of the sample or (B) the upper 90 percent confidence limit of the true mean value divided by 1.05. For each basic model of urinal, a sample of sufficient size shall be tested to ensure that any represented value of water consumption shall be no less than the higher of (A) the mean value of the sample or (B) the upper 90 percent confidence limit of the true mean value divided by 1.05. The Department seeks comments on both these sampling plans at the public meeting. 1SILIE/ANSI Standards Section 123(f) of the Energy Policy Act of 1992 (EPAct), Public Law 102-486, contains a 2.5 gallons per minute maximum flow rate standard for faucets when measured at 80 pounds per square inch pressure. and references the test procedures found at ASME/ANSI Standard A 112.18.1 M-1989. The adoption of ASME/ANSI Standard Al 12.18. IM-1994 test procedure would require faucets not to exceed 2.2 gallons per minute flow rate when measured at 60 pounds per square inch pressure. Some products. including faucets for which flow characteristic data were provided by PMI. would not meet the new ASME/ANSI standard: The Department believes that if this is true, the new standard would be more stringent than the 1989 version, and the Department would be required to conduct a rulemaking to adopt new water usage standards. The Department seeks comments on the new ASME/ANSI Standard A112.18.IM-1994 and its stringency at the public meeting.

### The Department will consider the views.presented during the public meeting before issuing the

NOPR, and written statements should be submitted no later than March 31, 1996. Written comments (10 copies) should be labeled "Standards, Testing. and Certification Requirements for Plumbing Products." and submitted to:. Ms. Sande Beall, Office of Codes and Standards, U.S. Department of Energy. 1000 Independence Avenue, SW, Washington, DC 20585-0121_ Telephone:- (202) 586-7574. The public meeting will be conducted in conference room style. There shall be no discussion of proprietary information, costs or prices, market shares, or other commercial matters subject to the antitrust laws. A verbatim transcript of the public meeting will be taken. For further information, please contact Mr. William W. Hui at (202) 586-9145, or Mr. James Raba at (202) 586-8654.

ichael J..:McCabe. Director Of tce o odes and Standards Office of Building Technologies Energy Efficiency and Renewable Energy Attachment A - Agenda Attachment B - PMI Calculation Attachment C - PMI Flow Data



### 3

### AGENDA U.S. DEPARTMENT OF ENERGY OFFICE OF ENERGY AND RENEWABLE ENERGY PUBLIC MEETING ON PLUMBING PRODUCTS PLACE OF MEETING: FORRESTAL BUILDING 1000 INDEPENDENCE AVENUE. SW ROOM BE-069 WASHINGTON. DC 20585-0121 TELEPHONE: (202) 586-7574 TELEFAX: (202) 586-4617 DATE AND TIME: WEDNESDAY. FEBRUARY 28. 1996 1:00 P.M . - 5:00 P.M. I. PURPOSE OF THE PUBLIC MEETING The purpose of the public meeting is to discuss issues raised by the Plumbing Manufacturers Institute ( PMI) concerning proposed statistical sampling plans for plumbing products. the relationship of a statistical confidence level to variations in plumbing products resulting from the manufacturing process. mathematical rounding procedures to be used when determining compliance. and the impact of the 1994 ASME/ANSI Standard A 112.18. IM for "Plumbing Fixture Fittings" for reducin water flow rate. •I1. ISSUES A. Proposed Statistical Samplinc Plan for Plumbing Products PMI has requested discussion regarding proposed statistical sampling plans for faucets. showerheads. water closets. and urinals. B. ASME/ANSI Standard Al 12.1 S. l M for Plumbing Fixture Fittings PMI has requested discussion regarding updating the requirements of the Energy Policy Act of 1992 in the Notice of Proposed Rulemaking for Plumbing Products to be in conformity with the 1994 version of the American Society of Mechanical Engineers/American National Standards Institute (ASME/ANSI) Standard A112.18.1M for "Plumbing Fixture Fittings." C. Other Issues Other issues . if any. to be discussed at this time. ATTACHMENT ADepartment of Energy Dctemilnlna the Numbir of Units to be Tasted

N Units Tested 

### Sample

Mean sample Std Dev 1 1.4 2 1.8 1.800 0.2820 3 1.4 1.533 0.2309 4 1.8 1.800 0.2309 5 1.4 1.560 0.2191 

## 8 1.8 1.600 02191 7 1.4 1.571 0.2138 

### 8 1.8 1.800 0.2138 1.4 1.578 0.2108 

### 1 0 1.8 1.600 0.2108 11 1.4 1.582 0.2089 12 1.8 1.600 0 .2039 13 1.4 

### 1 1 85 0.2075 14 1.8 1.600 0 . 2075 15 1.4 1.587 0.2088 16 1.8 1.800 0 . 2086 17 1.4 1.588 0.2058 18 1.8 1.600 0.2058 19 1.4 1.589 0.2052 20 1.8 1,800 0 .2052 90% Confidence Leval 901 Upper "r Conf Lv (UCL) 3 . 078 2.218 1.888 1.786 1. 638 1.789 1.933 1.710 1.478 1.732 1.440 1.888 1.415 1.707 1.397 1.878 1.333 1.892 1.372 1.888 1.383 1.882 1.368 1.683 1.350 1.875 1..345 1.858 1.341 1.889 1.337 1.855 1.333 1.886 1.330 1.662 1.328 1.661 d-1.06

.cj, UCLJd if you, tf no. 1.00 < X ? Mean then,



### OK UCL/d 2.110. 1.700 1.704 1.629 1.650 1.807 1.825 1.598 1.812 1.58.9 1.502 1.583 1.595 1.579 1.590 1.578 1.685 1.573 1.582 no

no no no no no no no no no no yea yes yes yea yeas yes yea yes 1.585 1.800 1.587 1.600 1.588 1.800 1.589 1.600 LI -

10 1.700 1.704 1.829 1.650 1.607 1.62.8 1.596 1.612 1.588 1.802 

### d.1.101 YSL MSL if yea, if no. 1.1 d Mean then, X ? OK UCUd 2,014 no 1.823 no 

## 1.823 1.626 no 1.528 1.555 yes 1.560 1.575 yes 1.800 1.534 yea 1.571 1.552 yes 1.800 1.524 yes 1.678 1.538 yes 1.600 1.517 yes 1.582 1.529 yes 1.800 1.512 yes 1.585 1.523 yes 1.600 1.S08 yes 1.587 1.517 yes 1:600 1.508 yea 1.688 1.513 yes 1.600 1.602 , yes ' 1.689 1.510 yes 1.800 

### I 95% Confidence Levee d.1,08 d=1.10 

### Units sample Sample 85% 

### Upper Y.Qk UCUd ff you. K no, 

## I&L N Tasted Mean Std Dov -r Conf Lv 1.06 < X ? Mean then, 1.1



## (IQ . (LICL) OK UCLA 1 1.4 2 11 1 .800 0.2828 8 . 314 2.963 2.728 no 

### 272.6 2.503 3 1.4 1.533 0. 2309 1920 1.923 

### 1.831 no 1131 1.748 

### 4 1.8 1.600 0 .2309 2.353 1.872 1.783 no 1.783 1.702 5 1.4 1.580 0.2121 2.132 1.769 

### 1.885 no 1.685 1.508 6 1.8 1.600 0-2191 2.015 1.780 1.825 no 

### 1.895 1.818 7 1.4 1.571 0. 2138 1.943 1.728 1.8{8 

### no 1.648 1.571 8 1.8 1 . 600 0 .2138 1-895. 1.743 1.680 no. 1.880 1.585 9 1.4 1.578 0.2108 1.850 1.708 1.827 no 

### 1.827 1.553 10 1.8 1.800 02108 1.833 1.722 1.540 no 1.640 1.588 NATURE SAVFR' FAX MEMO 01618 7 -

Ckuri,., from C-041 0L 

### UCL If Y", K no. d Msafl then. 

### < X ? OK UCLJd (

i no no no no no yes yea yes Yee 1.571 -1.600 1.578 

## 1.600 

## 2.003 748 1.702 808 -a18



### ATTACHMENT B Piton. I 

## J Phal s 2.014

### NOTES: 4

1 THIS DRAWING IS SUBJECT TO CHANGE WITHOUT NOTICE. FAUCET ATTACHMENT FLOW TEST PERFORMED PER A.N.S.I. A112. 18.1 M, TEST PROCEDURE 6.5.1.

WATER FLOWRATE IN GPM LPM

m 

## --4 [9.46]

2.5

[5.69] 

### 1.5 [7.57] 

### 2.0

1.0 13;79] 

### 0.5 

## 11,591 0.0• 

## pommommm"

0.0 10 20 30 40 50 60 70 60 90 [0.89] [1.38] [2 .07] [2.76] [3.451 [4,14] [4.83] 15.52 ] [6.21] 

### UNE PRESSURE, PSI DESCR1P11ON BY TE 

### APPR 1



# FLOW RATE GRAPH [METRIC CONVERSION] TIRE 

## 2.5 GPM PRESSURE COMPENSATING FLOW CONTROLLER

MATER AL uut£Ss OTHERw3E wmmm

D 4ENSIONS ARE D1 INC1 JUOC x FINISH '

*.005 *.010 ±.020 MGM I/T DRAWN DATE SCALE SIZ REV. E' 

### SE 8-95 A

DATE PRODUCT TYPE 

### r7-gl7

## Sample E



# Fa, s_c 0933

'18 

# GPM

1.6- 

# i I oo-^- 0:0 C, 

# [FlIovsFPiesurE

5.3 '0.0 15.00 ro.0 %5.3 

## j 3:28 PM 

# I

30,3 35.1 40.0 45.0 50.0 55.00 60.c 6 i.c ; 0.0 5.3 

# PSI 

# 1- ioo t35.c 30.0 

## (05/30/95]

## Sample E 

# esjurn 

# "JAI

I 

# GPM

n .1

Hl

3.6- C1.4 - 

## N 

# 11 

# i

5.;1 ti .0 15.1 iO.0 %^.3 301 35. 3 40.0 15.0 30.0 55.0 6O .C 65. :0.0/5.5 800 85.C •)0.0 

## L3:28 PM 

# PS! (08^30195J

### NOTES: .



### 1 THIS DRAWING IS SUBJECT TO CHANGE WITHOUT NOTICE. FAUCET ATTACHMENT FLOW TEST PERFORMED PER A. N.S.I. Al 12 . 18. M. TEST PROCEDURE 6.5.1.

WATER FLOWRATE IN G 

### LPM 2.5 

## [9.461 0 7] 17. 

### 1.5 

## [5.681 1.0 [3,79] 

### 0.5 [1.99) 

### 0.0 0.0 10 20 '30 40 50 60 70 80 90

(0.e9] [1,38] [2.07] (2 . 781 13,451 [4 , 14] (4,83] (5.52] [6.21] 

### LINE PRESSURE, BAR R DESCRTP110N BY TE PR



# FLOW RATE GRAPH [METRIC CONVERSION] TIRE 

## 2.5 GPM PRESSURE COMPENSATING 

## FLOW CONTROLLER

MATERIAL UK= onam f3E SPEWWD

DuemoNS IRE N 1NcIT 3 X)OC )O( i FINISH . . .

* 

## .oos 

## * .o10 't.oio ANGLES # 1/2' DRAWN DATE SCALE REV. SIZE 

### SE 8-95 

## q.

DATE PRODUCT TYPE

## Cold

24 

# F 

# S ur



# its

IfUe -.U

# t

GPM

fv

I i 

## 4g . c

25. ': 5 .C C' 15 .9 TA ^5 :a -a.;1 65 .9' 7C'.' 75. 9 3C. C. H5.9a.0



# PSI

## Hot



# GPM I.4

I.2

C.L 

## A g 

# . C F 1 !

J•^ t

J"' r

. .rr

_J • 

## 07:19 AM 4J 5 45.) C.C 5`•.') 1G.C E. 0 74:.C 75 . ; i C.C 85t, SQO 

# PSI 08131195,

## Hot



# GPM A g. 

# C 

# ' 

# F v s P s u r

.10 7



### IC.C ; `.LI TO ;) 25.0 3,i.D i5.D 

## 107:19 AM 4J.5 45.E 

# PSI C KC E. C. 71;. C 75. ; BC. C 85.C ^C.O



## 199/31(95 ;L-6-

-1- 

# GPM

^'i 5.3 Ii;.C 15.0



## 07:23 AM )n Cold

irwyr^



### 3.11 35.C 

# P s urE

4C,.ij ' 45.0 

# PSI T; c 4G



### x.:1.1 65.0 'f•J 

### 75,11 3C. C' 

### 85.`1 9.1.0 

## 8/3 /95Sample Dada - Water Closets

I Gravity wa -

ter closets a varibllityaapproxit- 10% 1-pc. 3 2-pc. models n. g?F x_ s 95% iPn 95% UCL D =1.95 D=1:1 ,9d%IPn 8046UCI. D=l.0 D=1 1 1 2 -- 1.73

1.48 1.73 _

1.505 n/a

0.190919 .31

n!_a n a • 64 2.447519 Na

2.33097 _ rda -

2 . 225017 n/o

078 3 n/a ^-

2 Q105Q3 - n/o_

1 G148 .

nh 1 627812 3 1.63 806667

1. 0.13050 -2.92- 1.8388- 1.749334 1 .669819 I M B 1 755308 . 1 671722 1 5G5734 4 1.47 1.57250 .130735 2. 353 1.72831 .8441 _05 1 _

1.589313 1 636 .

1 679572 . 589592

1 .

1 526684 _ 5 _

1 1.5860 0. 117175 2.132 1 . 897725 _ 1.8188x1 - Pas . 1.533 . 1.668335 .

1. 588938 . Paas - 6 1.76 1.6150 0 .12681 2.015 1.719172 1.637307 1.476 1 .691307 1.6111789 

### 7 1.44 1.590000 0.133167 1.943 1 . 8$7788 1.807416 1.44 1.662472 1 . 683908 - 

### 8 1.58 1 . 58876 0. 123339 1.895 1.871398 1.591807 1.415 1.850453 Pass --9_ 1.7 .801111 9. 121188 1.86 1.878247 1.596425 _ 1.397 1.857544 --- - 10 1.46 1,6870 0012266 1 . 833 1 .658108



### _ Pass 1.363 1.640649 Flushomster-tank water doseta - varibt = s x +/- 696 n.

_ x s 95% On 95%UCL 0 = 1.05 9 = 1.1 90%tPn 9056UCL 0=1.05 D1.1 1 1.88 1 .68 rug n/a Till 

### n1a -i/o n/a Na rife n/a_.. 2 1.51 1.5950 0.120208 8.314 2131771 2030258 _ 1.937974 _ _

3.078 _ __

1 . 85687 1 . 788257 1.887881 3 1.53 1 .57333 0.092916 2.92 1.728981 1.647801 1.57271 1 . 868 1 . 674511 694 1 . 522282 4 1.65 1 .59260 0.085 2.353 1 .692503 1 .611907 Paso -- -- 1.638 1 . 662115 1 . 582967 Pass 

### 5_ --4.5- -1;5740-- 13.@8440- -2:1 -1: 5728 - -= 033;1 - "T:631892 Pass - ----- 6 1.57 1 .67333 0.075542 2 . 016 1 .035489 1.557608 1.47$ 1 . 618862 - 7 1.68 1 . 685714 0.078345 1 . 643 1.641776 Pass __ _ _ 1.44 1.627283 

### 8 1.61 1 . 588750 0.071201 1.895 1.438461 _ 1.415 1 .624376 B 1.52 1.561171 0.070435 1.89 1.624781 1.397 1.61391 10 1.63 . 1.5880 0.068103 1 . 833 1.625525 - 1.383 1 . 615622 

### Flusharneter-valve water cloeets - varlbiQty = aPPMx +1-12.5% Note: Var$etbn dus nwlnly to valves c#rosen at rwrdem n. gpf x s 95% On 5596 UCL D =1.05 D- 1.1 8095 OW 9096 UCL D = 11.05 D =1.1 1 1.7T 1.77 Ala nta nh Na- ^ n/a n/e 

### n/a -n/o- nla



### . 2 1.41 1.590 0.264558 8.314 2 .726692 2.596848 2478811 3.078 2144124 2.042023 1.949203 3 1.65 1.610000 0 . 183303 2.92 1.919033 1.82765 1.744513 9 . 686 1.809801 1 .72343 1:64 5092 4 1.73 1 .64000 0.161245 2.353 1 . 829705 1.742576 1.883368 38 1.77206 1.687376 1.610963 5 _ 1.43 1 . 5980 0.189286 2.132 1.756458 1 .674722 1.5 98 596 1.533 1.713376 1.831787 1.557615 6 1.58 1 . 60 0.150698 2.015 1.718992 1 .637138 1.58272 _ 1.478 _ 1.685825 x.

801.5645 Pass 7 - 1.44 1 .512867 0. 148_623 1.449 1.682654 1 .602528 Pass -_--- - _ 0.44 7. 65423 1.675457 _-- 6 1.57 1 .57260 0.138435 1 .695 1.665283 1.585865 ^ 1.415 1.64176 7 1.563567 9 . 1.67 1 .583333 0. 13351 1.86 1 .66611 1 . 686771 1 . 397 1.845605 Pass - 10 1.5 1.5750 0. 128604 1.8'33 1.649551 1.571001 1 . 363 1.831249 Caution- The above data represent, the capebllitk a o1 state of the art pottsrtea . Variations for smaller businesses that have Iau control of liner prooesces rrray be siyniAcantly higher. .