GB 474-1996
AbolishedPreparation of coal sample
煤样的制备方法
Application Summary AI generated
GB 474-1996 specifies the methods for preparing coal samples from bulk coal for analysis, including procedures for crushing, mixing, dividing, and drying to ensure representative and consistent test portions. It is applied in coal mining, processing, and quality inspection industries, as well as in laboratories conducting proximate, ultimate, or calorific value analysis of coal. This standard ensures that sample preparation does not introduce bias, enabling accurate and comparable results across different testing contexts.
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