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."

EE-DET-93-003 COMMENT 0A
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 offaucet, 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.

EE-DET-93-003 COMMENT 0A
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

EE-DET-93-003 COMMENT 0A
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 A

EE-DET-93-003 COMMENT 0A
Department 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 1 185 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 n o 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-0410L

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

EE-DET-93-003 COMMENT 0A
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 1APPR

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

FINISH 'x *.005 *.010 ±.020

MGM I/T

DRAWN DATE SCALE

SIZ

REV.

E'

SE 8-95 A

DATE PRODUCT TYPE

r7-gl7

EE-DET-93-003 COMMENT 0A
Sample E

Fa, s_c 0933

'18

GPM

1.6-

i

I

oo-^-

C, 0:0

[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]

EE-DET-93-003 COMMENT 0A
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

EE-DET-93-003 COMMENT 0A
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

17. 7]

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

EE-DET-93-003 COMMENT 0A
Cold

24

Fits S ur

IfUe -

.Ut

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

EE-DET-93-003 COMMENT 0A
Hot

GPM

I.4

I.2

C.L

1 ! A g. C F

t J•^

rJ"'

. .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,

EE-DET-93-003 COMMENT 0A
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

CKC E. C. 71;.C 75. ; BC.C 85.C ^C.O

19 9/31(95 ;

EE-DET-93-003 COMMENT 0A
L-6-

-1-

GPM

^'i 5.3 Ii;.C 15.0

07:23 AM

)n

Cold

i

rwyr^

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 /95

EE-DET-93-003 COMMENT 0A
Sample Dada - Water Closets

I

Gravity water closetsa 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

3 078

n/a ^-

2 Q105Q3

- n/o_

1 G148

.

nh

1 627812 3 1.63 1.806667 0.13050 -2.92- 1.8388- 1.749334 1 .669819 IMB 1 755308

.

1 671722 1 5G5734 4 1.47 1.57250 .130735 2. 353 1.72831 .8441

_

1 05

_

1.589313 1 636

.

1 679572

.

1 589592

. _

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 x801.5645 . 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 1.641767 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. .

EE-DET-93-003 COMMENT 0A