GB/T 19224-2003
AbolishedDetermining the relative degree of oxidation inbituminous coal
烟煤相对氧化度测定方法
📚 References & Relations / 引用与关联
normative_reference
GB 474
normative_reference
GB/T 474-1996
normative_reference
GB/T 629
normative_reference
ISO 1988
normative_reference
ML 4.2