This standard specifies the reagents and materials, instruments and equipment, measurement procedures, expression and precision of measurement results for the determination of low-rank coal light transmittance. This standard applies to lignite and low-rank bituminous coal.
GB/T 2566-2010 history
2010GB/T 2566-2010 Determination of transmittance for low rank coal
1995GB/T 2566-1995 Determination of transmittance for low rank coal