EPA Method 1684

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EPA Method 1684:
Total, Fixed, and Volatile Solids in Water, Solids, and Biosolids

Sample aliquots of 25-50 g are dried at 103EC to 105EC to drive off water in the sample.

This method is applicable to the determination of total solids and the fixed and volatile fractions in such solid and semisolid samples as soils, sediments, biosolids (municipal sewage sludge), sludge separated from water and wastewater treatment processes, and sludge cakes from vacuum filtration, centrifugation, or other sludge dewatering processes.

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