State of Washington - Seattle

Dec 31, 2008 · Coupons must meet ASTM F 436, Type 1, with a Rockwell Hardness of C 38-45. Each coupon used in the test procedure is subjected to the following process to assure accuracy in test results. Wipe with suitable solvent to remove grease and oil. Examine each coupon for metallurgical abnormalities and reject those that are suspect to flaws. ................
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