China?s National Standards – Guo Biao GB5751-1986.

摘要

There is no direct correlation between the Chinese and other internationalclassifications. Chinese coal classifications have more classes of coal types. Generally,hard coking coals under typical international standards are equivalent to primary cokingcoals and fat coals, while semi-soft coking coals are similar to 1/3 coking coals andlean coals in China. China typically uses gas coal, meagre lean coal, sticky coal andanthracite coal similarly to PCI coal.