本标准规定了标准程序和程序 检测和分类的要求 地面局部过热 化学蚀刻法。过去使用的一些方法如下: 不再推荐。规格应该是 更改为使用本标准中的方法。这些 蚀刻方法对温度变化更敏感 表面硬度比大多数硬度测试都高 方法。本标准适用于钢制零件，如齿轮， 轴、花键和轴承，但不适用于 氮化零件和不锈钢。

This standard specifies standard procedures and requirements for the detection and classification of localized overheating on ground surfaces by chemical etch methods.Some methods which have been used in the past are no longer recommended. Specifications should be changed to use the methods in this standard. These etching methods are more sensitive to changes in surface hardness than most hardness testing methods.This standard applies to steel parts, such as gears, shafts, splines and bearings, but is not applicable to nitrided parts and stainless steels.