This Rules is applicable to preparation of samples collected according to the specified method in GB 2007.1.
Prepared samples shall be able to represent the quality and characteristics of original samples, and it shall be applicable to requirements of analyzing or testing.
This method describes preparation methods of the following samples:
a. Moisture samples: particle size - 22.4mm, 5kg; particle size - 10mm, 2.5kg;
b. Samples for component analysis: maximum particle size 180μm (80 meshes), 250g;
c. Particle size samples: particle size samples shall be dried in the air.