Laserfiche WebLink
. I~D`~ SEP 2 '94 .14.48 No.017 P.03 <br />` ' ..~~S~tLT ~ ~ c7C'Y.~ S'~CZ '13 (M .D ~ . ~ .. . <br />tom!?MORAND~L <br />Date: September 26, iS9a ~ Our Ref.:9g3-2732 <br />TO: Allen Sorenson, Division of Minerals and Geology <br />FROM: Tarry Mandziak, Golder Associates Inc. ~~ <br />Pete Bowers, Golder Associates Inc.,r~ <br />RE: NON-DESTRDCTIVE TESTING <br />The specifications for tha nondestructive testing of seams (Page <br />02776.0-18, Section 3.08.3.D of the specifications) are as follows: <br />The following nondestructive test procedures are applicable to <br />those processes that produce a double seam with an enclosed <br />space (i.e., Double Fusion Seam Only) and shall be followed by <br />the CONTRACTOR. <br />1. Seal one end of the seam to be tested. <br />2. Ynsert the needles or other approved pressure feed device <br />through the sealed end of the channel created by the <br />double wedge fusion weld. <br />3. Energize the air pump to verify the unobstructed passage <br />of air through the channel. <br />4. Seal the other end of the channel. <br />5. Energize the air pump to a pressure to approximately <br />thirty.(30) psi, close .valve, and sustain the pressure <br />for approximately 5 minutes. <br />6. If loss of pressure exceeds three (3) psi, or pressure <br />does not stabi'~i2e, locate faulty area, repair and' <br />retest. <br />7. Remove needle or other approved pressure feed device and <br />seal. <br />8. Test locations, documentation number, date and tester <br />will be indicated with an indelible marker on the liner <br />at each test interval. <br />Golder Associates Inc. (Golder) certifies that the testing <br />procedure:followed in the field has followed the above mentioned <br />specifications. In addition, a column has been added to the <br />pressure test data entry sleet L•o verify that the channel between <br />the two Fusion seams have been monitored to ensure that it is <br />continuous. <br />