ASME A112.19.14-2006 pdf free download.Six-Liter Water Closets Equipped With a Dual Flushing Device
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 conducted 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 normal 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 singleply toilet paper (b) each crumpled into a loose ball measuring 2 in. to 3 in. (51 mm to 76 mm) in diameter. The standard size test sheet shall be 4.5 in. 4.5 in. (114 mm 114 mm). 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.
3.2.4.1.1 Absorption
(a) Test Method. A six-sheet strip of the proposed toilet paper shall be obtained. The paper shall be wrapped snugly around a piece of 2 in. Schedule 40 PVC pipe. The paper shall be slid off the pipe. The tube of paper shall be grasped approximately halfway down its length and shall be turned inside out and down over itself. This shall result in a ball approximately 2 in. (51 mm) in diameter. The ball (straight edges down) shall be dropped into a pan of water. The time it takes for the ball to become fully saturated and sink below the water surface shall be recorded.ASME A112.19.14 pdf download.ASME A112.19.14-2006 pdf free download
