GB/T 46291-2025
ActiveGeneral rules of coal petrographic analysis
煤岩分析方法一般规定
Application Summary AI generated
GB/T 46291-2025 establishes the fundamental procedures and terminology for the microscopic analysis of coal, including maceral identification, reflectance measurement, and sample preparation. It is applied in the coal mining and processing industries for resource evaluation, coal blending optimization, and quality control in coking and combustion applications. The standard ensures consistent petrographic data across laboratories for geological surveys and industrial coal utilization.
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