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GMW14872

4th Edition, October 2018

Complete Document

Cyclic Corrosion Laboratory Test

Includes all amendments and changes through Change/Amendment , October 2018


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Product Details:

  • Revision: 4th Edition, October 2018
  • Published Date: October 2018
  • Status: Active, Most Current
  • Document Language: English
  • Published By: General Motors Worldwide (GMW)
  • Page Count: 27
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

Introduction

Note: Nothing in this standard supercedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence.

Purpose. This procedure describes an accelerated laboratory corrosion test method to evaluate assemblies and components. The test procedure provides a combination of cyclic conditions (salt solution, various temperatures, humidity, and ambient environment) to accelerate metallic corrosion. The procedure is effective for evaluating a variety of corrosion mechanisms, such as general, galvanic, crevice, etc. The test exposure/conditions can be individually tailored to achieve any desired level of corrosion exposure. Also, synergistic effects due to temperature, mechanical and electrical cycling, along with other stresses, can be comprehended by this test. See Deviations Section at the end of this document for typical modifications.

Applicability. This is a cyclic corrosion test (refer to Figure A1) used for validation testing (cosmetic and/or functional/general durability), development testing, and quality control testing, for all global environmental regions.