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How to get the total moisture coal sample alone from the coal flow?

Take the total moisture coal sample from the coal flow according to the time-based or quality-based sampling method. Increments number shall be at least 10 pieces for every 1000t. When the coal is over 1000t, the increments shall be calculated as the following formula:

N=n×(m/1000)1/2

where:
N---Increments quantity that should be sampled;
n---Increments quantity selected according to the coal types and ash determination regulation;
m---True Coal Quality, t.

When the coal is less than 1000t, sample at least 6 pieces coal samples. Increments quality can be adjusted by the nominal top size.