ASME A112.19.14-2006 pdf download

ASME A112.19.14-2006 pdf download.Six-Liter Water Closets Equipped With a Dual Flushing Device.
1 GENERAL 1.1 Scope This Standard establishes physical, material, testing, and marking requirements for 6 L water closets that incorporate a water-conserving, dual-flushing feature into the fixture. The tests specified in this Standard are for the removal of liquid wastes and toilet tissue or other comparable waste loads that are expected when actuating the reduced flush feature of the unit. The use ofalternate materials ormethods is permitted, provided that the proposed material and method com- ply with the performance requirements and the intent of this Standard. 1.2 Units of Measurement Values are stated in U.S. Customary units and the International System of Units (SI). The U.S. Customary units shall be considered as the standard. 1.3 Reference Standards The following documents form a part of this Standard to the extent specified herein (the latest issue shall apply): ANSI Z124.4, Plastic Water Closet Bowls and Tanks Publisher: International Association of Plumbing and Mechanical Officials (IAPMO), 5001 East Philadelphia Street, Ontario, CA 91761 ASME A112.19.2, Vitreous China Plumbing Fixtures and Hydraulic Requirements for Water Closets and Urinals Publisher: The American Society of Mechanical Engineers (ASME), Three Park Avenue, New York, NY 10016-5990; Order Department: 22 Law Drive, Fairfield, NJ 07007-2300. 1.4 Definitions dual flush: a feature that allows the user to flush the water closet with either a reduced or full volume of water depending upon bowl contents. low-consumption water closet: a water closet having an average water consumption (total flush volume) less than or equal to 1.6 gal (6 L) over the range of test pressures as specified in ASME A112.19.2 for each water closet type, and not exceeding 2 gal (7.6 L) at any one 1 test pressure (based upon average values from the three-run test). 2 REQUIREMENTS 2.1 Operation The dual flush mechanism shall function by actuation and release of the selector control, switch, or handle and shall complete its cycle without requiring further action or holding by the user. 2.2 Water Closets Water closets equipped with dual flush features shall conform to the requirements of ASME A112.19.2 or ANSI Z124.4. 3 TESTING 3.1 Full Flush Mode Water closets equipped with dual flush features shall meet all the requirements of ASME A112.19.2 for low consumption water closets when the full flush volume is activated. 3.2 Reduced Flush Mode 3.2.1 Trap Seal Restoration Test. The water closet as tested in paras. 3.2.2 through 3.2.4 shall also meet the performance requirements of para. 8.3.1 of ASME A112.19.2. 3.2.2 Reduced Flush Volume Test. The reduced flush volume shall not exceed 1.1 gal (4.1 L) per flush when tested in accordance with para. 8.4 of ASME A112.19.2. This testing shall be conducted before the durability testing in para. 3.2.5. The same testing shall be con- ducted after the durability testing in para. 3.2.5 and the 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 be added to 0.26 gal (1 L) of water and mixed thoroughly in a clean container. (b) The water closet under test shall be flushed once and allowed to complete its filling cycle. One fluid ounce (30 mL) of the dye solution shall be added to the water in the bowl and mixed thoroughly. (c) 0.34 oz (10 mL) of this solution shall be removed from the bowl and shall be added to 5.75 oz (170 mL) of clean water in a suitable container (i.e., dilution ratio of 17:1). A sample of this solution shall be set aside in a test tube or comparator vial as the control sample. (d) The water closet shall then be flushed several times to ensure that all traces of the dye solution have been removed. One ounce (30 mL) of the dye solution [see para. 3.2.3.1(a)] shall be added to the bowl. The flushing device shall be actuated and released in a nor- mal manner and the test fixture shall be allowed to complete its filling cycle. A test tube or comparator vial shall be filled with water from the water closet bowl and compared against the control sample. The test shall be repeated two additional times and the results shall be averaged. NOTE: Use of a spectrophotometer shall be permitted in case of doubt; however, this method shall necessitate the use of a different color dye. 3.2.3.2 Performance Requirement. A dilution ratio of at least 17:1 shall be obtained in each initial flush, for the average of the three tests. 3.2.4 Toilet Paper Test 3.2.4.1 Test Media. The paper removal test in the reduced flush cycle shall be conducted as follows: (a) the test load shall be composed of four balls of six sheets of untreated single-ply toilet paper (b) each crumpled into a loose ball measuring 2 in. to 3 in. (51 mm to 76 mm) in diameter.  The single-ply toilet paper shall first meet both the absorption and wet tensile strength requirements given in paras. 3.2.4.1.1 and 3.2.4.1.2, respectively.