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Metals certified in Domestic Sludge, 50 grams. The certified values for these materials are based on digestion following EPA Method 3050B (ICP-AES, Flame AAS, GFAA, and ICP-MS).
Metals certified in Industrial Sludge, 50 grams. The certified values for these materials are based on digestion following EPA Method 3050B (ICP-AES, Flame AAS, GFAA, and ICP-MS)