This test method is a standardized procedure for the determination of multiple minerals in environmental samples, including sludge, soils, sediments, and solid wastes, using Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). This test method quantifies calcium, copper, iron, magnesium, manganese, phosphorus, phosphorus (as P2O5), potassium, potassium (as K2O), sodium, sulfur, and zinc.