GB/T 397-2022
ActiveCommercial coal quality—Coal for coke making
商品煤质量 炼焦用煤
Application Summary AI generated
This standard specifies the quality requirements, testing methods, and acceptance rules for commercial coal used in coke production. It is applied in the coal mining and coking industries to ensure that coal supplied for metallurgical coke manufacturing meets specifications for ash content, sulfur content, and caking properties. The standard governs procurement contracts and quality inspections between coal suppliers and coke oven operators in China.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.