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Record sample location on daily report. <br /> All holes in the geomembrane resulting from destructive seam sampling shall be <br /> immediately repaired in accordance with repair procedures described in Section 8.2.0. <br /> 7.1.0 Sample and Coupon Size and Extraction <br /> Unless otherwise specified, the following sample preparation guidelines shall govem: <br /> Trial, representative or destructive seam samples cut from the installed liner shall <br /> measure 12"/30cm in width x 3'/1m in length with the width of the seam centered in the <br /> long axis of the sample. Coupons shall measure 1"/25mm wide by 6"/150mm long with <br /> the seam centered perpendicular to the length. <br /> Coupon extractions shall occur in three paired locations along the length of the seam <br /> sample: <br /> 2 coupons at the beginning, 2 coupons in the center and 2 coupons at the end of the <br /> sample for a total of six(6)extractions. Coupons may be extracted and evaluated <br /> incrementally. <br /> Sample Distribution <br /> Remnant 12"/30 cm square samples shall be cut into parts, labeled as specified and <br /> distributed as applicable: <br /> One portion for independent geosynthetic laboratory testing if previously specified <br /> and <br /> One portion to the Owner for archive storage <br /> 7.2.0 Coupon Field Testing <br /> Coupons shall be tested with a tensiometer and evaluated for bonded seam strength <br /> (shear) and peel using methods ASTM D4437. Tensiometer jaw separation rate for <br /> bonded seam strength/shear and peel test shall be 2"/minute (5cm/min.) <br /> All peel and shear strength samples shall yield Film Tearing Bond (FTB) as defined in <br /> GRI-GM 19. <br /> If the initial sample coupon test passes shear analysis yielding a FTB,the sample <br /> qualifies for further testing to obtain quantitative results until three(3)each peel <br /> samples and three(3)each shear samples are evaluated from the beginning middle and <br /> end of each sample. <br /> If more than one(1)of six coupons per sample fails,the seam should be repaired in <br /> accordance with Section 7.3.0. <br /> Created by Colorado Lining International 1-800-524-8672 11 <br />