General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 25213-2010
Scope
This standard specifies the terms and definitions, method summary, instruments and equipment, calibration, samples, measurement steps, result expression and method precision for measuring the plasticity of coal by constant moment Gypsometer. This standard applies to bituminous coal.
GB/T 25213-2010 Referenced Document
GB 475 Method for manual sampling of commercial coal