ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 11

Monitoring Environmental Tests by Coulometric Reduction of Metallic Control Samples

Krumbein, SJ
Member of Technical Staff, Technology Group, AMP Incorporated, Harrisburg, PA

Newell, B
Engineering Assistant, Corporate Testing Laboratory, AMP Incorporated, Harrisburg, PA

Pascucci, V
Supervisor, Reliability Testing, Corporate Testing Laboratory, AMP Incorporated, Harrisburg, PA

(Received 19 September 1988; accepted 3 April 1989)

Abstract

This paper describes a standard procedure for using constant-current electrolytic reduction (“coulometric reduction”) to determine the relative buildup of corrosion and tarnish films on control coupons from environmental tests, and discusses the types of results and correlations that may be expected. Examples of the applications of this proposed ASTM standard method will be presented for two types of environmental exposure: the mixed flowing gas test and the humid sulfur vapor (“flowers-of-sulfur”) test.

Keywords:
coulometric reduction, cathodic reduction, environmental testing, corrosion film analysis, tarnish film analysis, environmental test evaluation, environmental test monitoring, environmental test control, control coupons, control coupon evaluation

Paper ID: JTE11142J
DOI: 10.1520/JTE11142J
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