Iron and steel . micrographic method of determination of the non metallic inclusion content of unalloyed wire rod 钢铁.测定非合金钢线材中非金属杂质含量的显微照相方法
2.
Iron and steel . methods of determination of the non metallic inclusion content of wrought steels . part 1 : macroscopic methods 钢铁.锻钢中非金属杂质含量的测定方法.第1部分:低倍法
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Iron and steel . methods of determination of content of non metallic inclusions in wrought steel . part ii : micrographic method using standards diagrams 钢铁.锻钢中非金属杂质含量的测定方法.第2部分:标准图象显微照像法