ASME A112.19.14:2006 pdf download Six-Liter Water Closets Equipped With a Dual Flushing Device
GENERAL
1.1 Scope
This Standard establishes physical, material, testingand marking requirements for 6 L water closets thatincorporate a water-conserving,dual-flushing featureinto the fixture. The tests specified in this Standard arefor the removal of liquid wastes and toilet tissue orother comparable waste loads that are expected whenactuating the reduced flush feature of the unit.The use ofalternate materials or methods is permittedprovided that the proposed material and method com-ply with the performance requirements and the intentof this Standard.
1.2 Units of Measurement
Values are stated in US. Customary units and theInternational System of Units (SI). The US Customaryunits shall be considered as the standard.
1.3 Reference Standards
The following documents form a part of this Standardto the extent specified herein (the latest issue shallapply):
ANSI Z124.4Plastic Water Closet Bowls and TanksPublisher: International Association of Plumbing andMechanical Officials (IAPMO)5001 East PhiladelphiaStreet, Ontario,CA 91761
ASMEA112.19.2Vitreous China Plumbing Fixtures andHydraulic Requirements for Water Closets andUrinals
Publisher: The American Society of MechanicalEngineers (ASME)，Three Park Avenue，New YorkNY 10016-5990;Order Department: 22 LawDrive，Fairfield，NI 07007-2300.
1.4 Definitions
dual flush: a feature that allows the user to flush thewater closet with either a reduced or full volume ofwater depending upon bowl contents.
low-consumption tater closet: a water closet having anaverage water consumption (total flush volume) lessthan or equal to 1.6 gal (6 L) over the range of testpressures as specified in ASME A11219.2 for each watercloset type, and not exceeding 2 gal (7.6 L) at any one test pressure (based upon average values from thethree-run test).
2 REQUIREMENTS
2.1 Operation
The dual flush mechanism shall function by actuationand release of the selector control switch, or handle andshall complete its cycle without requiring further actionor holding by the user.
2.2 Water Closets
Water closets equipped with dual flush features shallconform to the requirements of ASME A112.19.2 0rANSI Z124.4.
3TESTING
31 Full Flush Mode
Water closets equipped with dual flush features shallmeet all the requirements of ASME A11219.2 for lowconsumption water closets when the full flush volumeis activated.
3.2 Reduced Flush Mode
3.2.1 Trap Seal Restoration Test. The water closetas tested in paras. 3.2.2 through 3.2.4 shall also meetthe performance requirements of para.8.3.1 of ASMEA112.19.2.
3.2.2 Reduced Flush Volume Test. The reduced flushvolume shall not exceed 1.1 gal (4.1 L) per flush whentested in accordance with para. 8.4 of ASME A11219.2This testing shall be conducted before the durabilitytesting in para. 3.2.5. The same testing shall be conducted after the durability testing in para. 3.2.5 andthe reduced volume shall not vary more than 0.11 gal(0.41 L).
3.2.3 Dye Test
3.2.3.1 Test Method(a) 0.18 oz (5 g) of methylene blue powder shall beadded to 0.26 gal (1 L) of water and mixed thoroughlyin a clean container.