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Modern Corrosion Testing: From Traditional Salt Spray Test to the Latest Innovative Methods with Advanced Environmental Controls

Modern Corrosion Testing: From Traditional Salt Spray Test to the Latest Innovative Methods with Advanced Environmental Controls
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A century ago, automotive companies developed the laboratory salt spray corrosion test method standardized in ASTM B117. Even then they knew this quality control test did not produce realistic exposures. Wet-dry cyclic tests provided modest improvements in correlation and have been used in architectural applications for many years.

Product Number: 41216-962-SG
Author: Sean Fowler, Jeffery Quill
Publication Date: 2016
Industries: Test Method , Corrosion Monitoring and Control , Coatings
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$20.00
$20.00

A century ago, automotive companies developed the laboratory salt spray corrosion test method standardized in ASTM B117. Even then they knew this quality control test did not produce realistic exposures. Wet-dry cyclic tests provided modest improvements in correlation and have been used in architectural applications for many years. Innovations in the 1990s included a combined weathering and corrosion method validated by SSPC and automotive methods that improved comparative test results by varying the relative humidity and periods of wetness. Problems remained due to limitations in corrosion test chamber technology and the test methods designed around them. The automotive industry responded with new technical requirements for a new generation of test standards and chambers. As a result, today’s corrosion tests offer the promise of realistic results combined with high repeatability.

A century ago, automotive companies developed the laboratory salt spray corrosion test method standardized in ASTM B117. Even then they knew this quality control test did not produce realistic exposures. Wet-dry cyclic tests provided modest improvements in correlation and have been used in architectural applications for many years. Innovations in the 1990s included a combined weathering and corrosion method validated by SSPC and automotive methods that improved comparative test results by varying the relative humidity and periods of wetness. Problems remained due to limitations in corrosion test chamber technology and the test methods designed around them. The automotive industry responded with new technical requirements for a new generation of test standards and chambers. As a result, today’s corrosion tests offer the promise of realistic results combined with high repeatability.

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