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METROPOLITAN WATER DISTRICT OF SOUTHERN CALIFORNIA (2) -2008
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METROPOLITAN WATER DISTRICT OF SOUTHERN CALIFORNIA (2) -2008
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Last modified
1/3/2012 2:37:33 PM
Creation date
9/22/2008 8:44:53 AM
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Contracts
Company Name
METROPOLITAN WATER DISTRICT OF SOUTHERN CALIFORNIA
Contract #
N-2008-116
Agency
PUBLIC WORKS
Expiration Date
6/30/2015
Insurance Exp Date
8/8/2008
Destruction Year
2019
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<br />.. ) <br />., <br /> <br />j <br />..<~ <br /> <br />Appendix C <br /> <br />Test Protocol- Formed Flapper Valve Accelerated Test <br /> <br />I. Puroose <br /> <br />To test a tlapper valve seal in an accelerated aging environment to determine its likely integrity <br />within a functioning toilet subjected to drop-in bowl cleaners. <br /> <br />2.~ <br /> <br />This test will assess the sealing characteristics of a formed t1apper valve or other seal in two <br />accelerated aging environments, each consisting of one of the following two commonly available <br />consumer products: (a) C1orox--Bleach and (h) 2000 Flushes- (Bleach). Upon completion of <br />teating. tho subjectl1apper valve will be evaluated as to its ability to withstand these drop-in <br />bowl c1el!/l<<l and maintain a 'Compliant" seal. "Compliant" is defined all no-leak OR does not <br />leak more than the specified rate. 0.25 ml per hour, <br /> <br />3. Procedure <br /> <br />3.1 leak Rate Test (to be performed prior to and at the end of the accelerated test) <br /> <br />3.1.1 Attach lest specimen to valvo seat (as specified by the manufacturer) in lest <br />apparatus. In thi8 case. tho apparatus consists of an 8-inch diameter clear pve <br />pipe attached to a flat piece ofO.2S-incb (minimum) pve flat stock and <br />appropriately sealed. The valve seat is attached to tho apparatus through tho <br />properly sized holo in tho l1at stock. The apparatus is then placed on top of a <br />tJu-ee.-liter graduated boater for tho purpose of accurately monitoring and <br />R1ClasuriAg any leats. (Note: An alternate set of apparatus is pennitted if it will <br />enable tho tester to provide tho required envirOlll1lCllt for tho test) <br /> <br />3.1.2 Fill the lest apparalua with tap water to the specified filllinc. The tcmperatuM <br />of the tap water shall be within a 16.C - 27"C rsnge. The filllinc is to be set at <br />7 -inches above the valve seat as this represents the lowest water level in moat <br />commercially available residential toilets. <br /> <br />3.1.3 lift the specimen and "flusb" the lest apparatus. Fill and repeat 2 more times. <br />This allows the specimen to be wetted and to find its "seat" <br /> <br />3.1.4 Fill the teat apparatus to the filllinc. Allow the flapper to seat properly by <br />leaving the set-up undisturbed for 24 hours +/- I hour. <br /> <br />3.1.5 Al the end of the 24-hour period. start test. Test should run for one hour +I-two <br />minutes. <br /> <br />Los Angele. Dq;~ b.~..t of W _ &: Power <br /> <br />Revised: 1111612005 <br />
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