规定了评估C含量在0.1%至1.5%之间且合金元素总含量小于或等于5%的钢的方法。对其他钢材使用该方法须经特殊协议。包括原理、取样、样品制备、碳化物分布评估、结果表达和测试报告。附件给出了参考显微照片。

Specifies a method for assessing steels with C levels between 0,1 % and 1,5 % and a total content of alloy elements less than or equal to 5 %. The use of this method for other steels shall be subject to special agreement. Contains principles, sampling, preparation of samples, assessment of the distribution of carbides, expression of results and test report. An annex gives reference photomicrographs.