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