Transcription of TEST METHOD 5 CORROSION TESTS Chapter 1. Uniform …
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TEST METHOD 5 CORROSION TESTS Chapter 1. Uniform …
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. Each coupon is weighed andimmersed in a test solution in glass jars with screwcaps and placed in an incubator at the testtemperature, undisturbed for 90 days.
prepared, usually 24 hours before use. Fire chemical products are prepared by stirring the wet components (when testing the component) or by adding the wet or dry components to water (when testing mixed retardant) according to manufacturer’s directions. The viscosity, refractometer values, density, and pH
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