ISO 7539-7:2005涵盖了进行缓慢应变速率试验的程序，以调查金属对应力腐蚀开裂（包括氢致失效）的敏感性。ISO 7539本部分中使用的术语“金属”包括合金。 慢应变速率测试适用于测试各种产品形式，包括板材、棒材、线材、板材和管材，以及这些材料的复合材料和通过焊接连接的零件。可以使用缺口试样，也可以使用最初的普通试样。 该试验的主要优点是可以快速评估特定金属/环境组合的应力腐蚀开裂敏感性。

ISO 7539-7:2005 covers procedures for conducting slow strain rate tests for investigating susceptibility of a metal to stress corrosion cracking, including hydrogen-induced failure. The term "metal" as used in this part of ISO 7539 includes alloys. Slow strain rate tests are adaptable for testing a wide variety of product forms, including plate, rod, wire, sheet and tubes, as well as composites of these and parts joined by welding. Notched specimens may be used, as well as initially plain specimens. The principal advantage of the test is the rapidity with which susceptibility to stress corrosion cracking of a particular metal/environment combination can be assessed.