给出了通过酸腐蚀对钢进行宏观检查的方法，并对这些方法进行了说明。所给出的方法使得对蚀刻表面进行知情描述成为可能。交叉引用:BS 1134:第37部分

Gives guidance on and describes methods for the macroscopic examination of steel by etching with acids. The methods given make it possible to achieve an informed description of the etched surface.Cross References:BS 1134:Part 2M 37