Transcription of TEST METHOD 5 CORROSION TESTS Chapter 1. Uniform …
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TEST METHOD 5 CORROSION TESTSR evised November 24, 2000TM5 1 Chapter 1. Uniform CorrosionGeneral DescriptionPreparation of Fire Chemical ProductsCoupon Description and PreparationCoupon Degreasing and Initial CleaningCoupon ImmersionEnd of the Test ExposureFinal Coupon CleaningControl CouponsCalculations of CORROSION RateReplicatesRejection of Individual TestsAveraging of ResultsReporting of ResultsChapter 2. Intergranular CORROSION TestCoupon ExaminationTM5 2 Revised November 24, 2000 TEST METHOD 5 CORROSION TESTSC hapter 1. Uniform CorrosionGeneral DescriptionTest specimens (coupons) of each alloy to be tested,are engraved with a unique identification code,measured to determine dimensions, cleaned toremove grease and oxidation films, rinsed in distilledwater and dried.
Coupons for partial immersion tests are positioned so that the lower 2 inches of the coupon are immersed in the retardant. A small grease pencil tic mark on the edge of the coupon indicates the proper immersion level. See figure 5.4. The pulp-lined, Bakelite lid is …
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