1、AN AMERICAN NATIONAL STANDARDASME A112.4.2-2009Revision of ASME A112.4.2-2003 (R2008)Water Closet Personal Hygiene DevicesIntentionally left blank ASME A112.4.2-2009Revision of ASME A112.4.2-2003 (R2008)Water ClosetPersonalHygiene DevicesAN AMERICAN NATIONAL STANDARDDate of Issuance: August 24, 2009
2、This Standard will be revised when the Society approves the issuance of a new edition. There willbe no addenda issued to this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Periodically certain actions of the ASME A112 Committee may
3、be published as Cases.Cases and Interpretations are published on the ASME Web site under the Committee Pages athttp:/cstools.asme.org as they are issued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as
4、 meeting the criteria for American NationalStandards. The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and
5、 comment that provides an opportunity for additional public input from industry, academia,regulatory agencies, and the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of
6、 any patent rights asserted in connection with anyitems mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assume any such liability. Users of a code or standard are expresslyadvised that de
7、termination of the validity of any such patent rights, and the risk of infringement of such rights, isentirely their own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code o
8、r standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the establishedASME procedures and policies, which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retriev
9、al system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2009 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword ivCommittee Roster . vC
10、orrespondence With the A112 Committee . vi1 General. 12 General Requirements . 13 Testing . 24 Markings and Identification 3iiiFOREWORDThe ASME A112 Standards Committee organized Project Team 4.2 to develop an AmericanNational Standard for the evaluation of products covered under the scope of IAPMO
11、PS 93-95,Water Closet Seats with Spray.This Standard is written to give freedom to the manufacturer in design and technology toproduce products, whether completely mechanical in nature or incorporating electronically con-trolled features, with good engineering practices for the protection of public
12、health.The Project Team met on May 27, 1998, in Hoboken, New Jersey to begin the work. ThisStandard is the culmination of those efforts.In this edition, the Scope has been revised to include cold and/or hot water. Other minoreditorial changes also have been made to this edition.Suggestions for impro
13、vement of this Standard are welcome. They should be sent to TheAmerican Society of Mechanical Engineers; Attn: Secretary, A112 Standards Committee; ThreePark Avenue; New York, NY 10016.This revision was approved as an American National Standard on May 26, 2009.ivASME A112 COMMITTEEStandardization of
14、 Plumbing Materials and Equipment(The following is the roster of the Committee at the time of approval of this Standard.)STANDARDS COMMITTEE OFFICERSD. W. Viola, ChairS. A. Remedios, Vice ChairC. J. Gomez, SecretarySTANDARDS COMMITTEE PERSONNELR. H. Ackroyd, ConsultantJ. A. Ballanco, JB Engineering
15、however, they shouldnot contain proprietary names or information.Requests that are not in this format will be rewritten in this format by the Committee priorto being answered, which may inadvertently change the intent of the original request.ASME procedures provide for reconsideration of any interpr
16、etation when or if additionalinformation that might affect an interpretation is available. Further, persons aggrieved by aninterpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does not“approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or
17、 activity.Attending Committee Meetings. The A112 Standards Committee schedules meetings as needed,which are open to the public. Persons wishing to attend any meeting should contact the Secretaryof the A112 Standards Committee. The A112 home page contains information on future meetingdates and locati
18、ons.viASME A112.4.2-2009WATER CLOSET PERSONAL HYGIENE DEVICES1 GENERAL1.1 ScopeThis Standard establishes general and performancerequirements, test methods, and marking requirementsfor bidet sprays and other optional features as appliedto water closets, water closet seats, and other retrofitdevices.
19、Products covered by this Standard are intendedto be supplied with cold and/or hot water.The provisions of this Standard are not intended toprevent the use of any alternate material or methodof construction, provided any such alternate meets theintent of this Standard.1.2 Units of MeasurementValues a
20、re stated in U.S. Customary units and in theInternational System of Units (SI). The U.S. Customaryunits shall be considered as the standard.1.3 ReferencesThe following documents form a part of this Standardto the extent specified herein. The latest issue shall apply.ANSI Z124.4, Plastic Water Closet
21、 Bowls and Tanks1ANSI Z124.5, Plastic Toilet (Water Closet) Seats1Publisher: International Association of Plumbing andMechanical Officials (IAPMO), 5001 East PhiladelphiaStreet, Ontario, CA 91761 (www.iapmo.org)ASME A112.19.2M, Vitreous China Plumbing Fixtures1Publisher: The American Society of Mech
22、anicalEngineers (ASME), Three Park Avenue, New York,NY 10016-5990; Order Department: 22 Law Drive, P.O.Box 2300, Fairfield, NJ 07007-2300 (www.asme.org)ASSE 1001, Performance Requirements for AtmosphericType Vacuum Breakers1Publisher: American Society of Sanitary Engineering(ASSE), 901 Canterbury Ro
23、ad, Westlake, OH 44145(www.asse-plumbing.org)UL 1431, Standard for Personal Hygiene and HealthCare AppliancesPublisher: Underwriters Laboratories Inc. (UL),333 Pfingsten Road, Northbrook, IL 60062-2096()1May also be obtained from the American National StandardsInstitute, 23 West 43rd Street, New Yor
24、k, NY 10036.11.4 Definitionsbidet spray: a water washing feature intended for genitaland perineal cleanliness.concealed: the position of the featured device, whenretracted, in order to prevent soiling by the user.self-cleaning: in the case of bidet spray sprayers, sprayerswhose exterior surface is f
25、lushed with flowing water atthe end of each cycle shall be considered self-cleaning.The self-cleaning function shall occur automatically dur-ing the operating cycle or it shall be initiated manuallyby the user.2 GENERAL REQUIREMENTS2.1 Backflow ProtectionEach unit that is intended for connection to
26、the potablewater supply shall be equipped with a backflow preven-tion device.Vacuum breakers complying with para. 3.5.1 shall beinstalled in accordance with manufacturers instruc-tions, with the critical level located not less than 1 in.(25.4 mm) above the flood level fixture rim.2.2 Electrical Comp
27、onentsUnits with electrical components shall comply withUL 1431.2.3 Vitreous China Water ClosetsVitreous china water closets shall comply withASME A112.19.2M.2.4 Plastic Water ClosetsPlastic water closets shall comply with ANSI Z124.4.2.5 Plastic Toilet SeatsPlastic toilet seats shall comply with AN
28、SI Z124.5.2.6 SprayersSprayers shall be fully retractable, self-cleaning, andconcealed when not in use.2.7 Water Closets With Bidet SprayWhen the sprayer is located in a concealed channelbelow the water closet flood level rim, the channel andsprayer shall be flushed with water during the operatingcy
29、cle of the bidet spray. The sprayer shall not be subjectto contamination in its retracted position. In its retractedASME A112.4.2-2009position, the sprayer shall be completely removed fromthe vertical path of the liquid and solid waste.When the water closet tank is used as a source ofwater for the s
30、prayer, the water shall be isolated fromthe water used for flushing.2.8 Seat Cover DispensersSeat cover dispensers shall be cycle tested in accor-dance with para. 3.5.2.2.9 Temperature Safety DeviceThe unit shall be equipped with a safety device toshut off the unit when the water discharge temperatu
31、rereaches 118F (48C).3 TESTING3.1 MethodologyAll testing shall be conducted in the order listed.3.2 Bidet Spray Pressure3.2.1 Flowing Pressure3.2.1.1 Test Method. The unit shall be connectedto a water supply whose pressure shall be raised to aflowing pressure of 125 psi (862 kPa), measured at theinl
32、et to the unit. Water shall be allowed to move freelythrough the unit for 5 min.3.2.1.2 Performance Criterion. There shall be nosigns of leakage from the unit. Flow from the unit shallbe as intended by the manufacturer.3.2.2 Static Pressure3.2.2.1 Test Method. The unit shall be in the offposition (f
33、ully closed) and the water pressure shall beraised to a static pressure of 250 psi (1 724 kPa). Thispressure shall be maintained for 5 min.3.2.2.2 Performance Criterion. The unit shall showno signs of leakage or structural damage.3.3 Bidet Spray Temperature3.3.1 Normal Operating Temperature3.3.1.1 T
34、est Method. At the maximum tempera-ture setting, run the unit for 5 min. Set the water inletpressure at 50 psi 5 psi (345 kPa 34.5 kPa) flowingpressure. Set the water inlet temperature at 65F 5F(18.5C 2.5C). Measure the maximum temperature atthe outlet.3.3.1.2 Performance Criterion. The maximum out-
35、let water temperature shall not exceed 110F (43C).3.3.2 Maximum Shutoff Temperature for SafetyDevice3.3.2.1 Test Method. Supply water to the unit atan initial temperature of 105F +0/10F (40.5C2+0/5.5C). Set the water inlet pressure at 50 psi 5 psi(345 kPa 34.5 kPa) flowing pressure. Activate thespra
36、yer and slowly raise the water temperature to 118F(48C). Increase the water temperature no faster thanan average of 1F (0.5C) every 5 sec. Repeat this testfollowing the bidet spray cycle test.3.3.2.2 Performance Criteria. Either the unit or thewater flow shall shut off within 5 sec of the discharget
37、emperature reaching 118F (48C). After shut off, watermay continue to flow from the unit, so long as the flowstream falls down off of the sprayer such that it will notcontact the user. In the event that water ceases to flowprior to reaching a temperature of 118F (48C), thedevice shall be considered t
38、o have complied with therequirement of this paragraph.3.4 Bidet Spray Cycle Test3.4.1 Test Method. The unit shall be tested 75,000successive and continuous cycles. Set water inlet pres-sure at 50 psi 5 psi (345 kPa 34.5 kPa) flowingpressure. The temperature of hot water flow in the unitshall be set
39、at the maximum setting. Operate the sprayer75,000 times. At each cycle, the retractable sprayer shallfully extend and then fully retract. For units with multi-ple sprayers, each sprayer shall complete 75,000 cycles.3.4.2 Performance Criteria. At the end of the cycletest, the valve shall be able to c
40、ontrol the water flowand the retractable sprayer shall still be functioning atoperating pressure. In addition, there shall be no signsof leakage from the unit. Flow from the unit shall be asintended by the manufacturer.3.5 Backflow Prevention Test3.5.1 Atmospheric Vacuum Breaker3.5.1.1 Test Method.
41、The vacuum breaker shall betested in accordance with para. 2.9 (water rise test) ofASSE 1001.3.5.1.2 Performance Criterion. Water rise in thesight tube shall be no more than12in. (12.7 mm).3.5.2 Seat Cover Dispenser Test3.5.2.1 Test Method. Operate the seat cover dis-penser for 5,000 cycles. The sea
42、t cover shall be dispensedand released to complete one cycle.3.5.2.2 Performance Criteria. Failure of the dis-penser mechanism to dispense the seat cover in 100 ormore of 5,000 cycles shall be cause for rejection of thedevice. In the case of continuous feed seat covers, theused seat cover material s
43、hall be rendered unusable.3.6 Bidet Spray Self-Cleaning Test3.6.1 Test Method. Operate the bidet spray enoughcycles to be sure the system is purged of air and filledASME A112.4.2-2009with water at normal operating pressure and tempera-ture. Extend the sprayer and dry it thoroughly usingpaper towel o
44、r tissue.Once it is completely dry, use a water soluble, con-trasting colored marker to draw lines on the sprayer asfollows. Draw three rings around the barrel, one in theupper third of the barrels length, one in the middlethird, and one in the lower third. Draw a fourth linelongitudinally, along th
45、e top of the barrel from one endto the other.After the lines have been drawn, release the sprayerand allow it to retract into its off position. Cycle the3sprayer two times on and off. Leave the sprayer on for5 sec and then off for 5 sec, and repeat one more time.3.6.2 Performance Criteria. All of th
46、e four ink linesshould be washed off of the sprayer. Any ink linesremaining on the sprayer shall be considered a failure.4 MARKINGS AND IDENTIFICATION(a) Each unit shall be permanently and legiblymarked with the manufacturers name or trademark.(b) Each unit or its packaging shall be marked withthe m
47、odel number.Intentionally left blank A112 ASME STANDARDS RELATED TO PLUMBINGAir Gaps in Plumbing Systems (For Plumbing Fixtures and Water-Connected Receptors) A112.1.2-2004Air Gap Fittings for Use With Plumbing Fixtures, Appliances, and Appurtenances A112.1.3-2000 (R2005)Stainless Steel Drainage Sys
48、tems for Sanitary, DWV, Storm, and Vacuum Applications, Above- and Below-Ground A112.3.1-2007Macerating Toilet Systems and Related Components .A112.3.4-2000 (R2004)Water Heater Relief Valve Drain Tubes .A112.4.1-1993 (R2008)Water Closet Personal Hygiene Devices . A112.4.2-2009Plastic Fittings for Co
49、nnecting Water Closets to the Sanitary Drainage System A112.4.3-1999 (R2004)Point of Use and Branch Water Submetering System .A112.4.7-2002 (R2008)Manually Operated, Quarter-Turn Shutoff Valves for Use in Plumbing Systems A112.4.14-2004Floor-Affixed Supports for Off-the-Floor Plumbing Fixtures for Public Use A112.6.1M-1997 (R2008)Framing-Affixed Supports for Off-the-Floor Water Closets With Concealed Tanks .A112.6.2-2000 (R2004)Floor and Trench Drains A112.6.3-2001 (R2007)Roof,Deck,andBalconyDrainsA112.6.4-2003 (R2008)Enameled and Epox
