Determine residual moisture on the 250-μm (No. 60) sieve size sample without prolonged delay after its preparation to avoid unmeasured moisture change and oxidation, especially for low-rank, easily oxidized coals.
Determine residual moisture on the 250-μm (No. 60) sieve size sample without prolonged delay after its preparation to avoid unmeasured moisture change and oxidation, especially for low-rank, easily oxidized coals.