ISO/PWI 7404-6

Coals — Part 6: Test method for determination of oxidation of coal

Scope

Test method for determination of oxidation of coal. Сreating a classification of oxidized coals and determining the directions of their effective use.
This standard applies to low and medium rank coals (brown coal and lignites,) hard coal, by-products and sets up petrographic oxidation stage test method and coal oxidation level.
The standard is intended for use by manufacturers (suppliers) and coal consumers, government agencies, certification bodies compliance, testing laboratories, research and development organizations, other legal entities and individuals working with coal