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1.1 This test method provides a means for monitoring corrosivity of environmental tests that involve exposure to corrosive gases.
1.2 This test method employs a resistance monitor (RM) probe fabricated from a chosen metal conductor, with one conductor segment uncovered to permit exposure of the chosen metal conductor to the corrosive gas mixture and the second conductor segment covered to insulate the metal conductor of this segment from exposure to the corrosive gas mixture. The covered conductor segment provides a reference for evaluating changes in the uncovered segment. The ratio of the resistance of the exposed segment to that of the covered segment provides a measure of the amount of metal conductor which has reacted with the corrosive gas test environment to form poorly conducting corrosion product, thus providing a measure of test corrosivity.
1.3 Resistance monitoring is applicable to a broad range of test conditions by selection of the appropriate metal conductor and initial resistance value.
1.4 This method is similar in intent to Test Methods B808.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ICS Number Code 77.060 (Corrosion of metals)
UNSPSC Code 41114604(Corrosion testers); 41111943(Electrical resistance or conductance sensors)
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ASTM B826-97, Standard Test Method for Monitoring Atmospheric Corrosion Tests by Electrical Resistance Probes, ASTM International, West Conshohocken, PA, 1997, www.astm.orgBack to Top