Method EPA 9071B

n-Hexane Extractable Material (HEM) for Sludge, Sediment, and Solid Samples

Applicability: EPA Method 9071B is applicable to determining the concentration of HEM, which is often used synonymously with “oil and grease,” in solid and semi-solid materials like sludge, sediment, and soil. It’s specifically used for materials amenable to chemical drying and solvent extraction.

Purpose: Method 9071B is designed to quantify relatively non-volatile hydrocarbons, vegetable oils, animal fats, waxes, soaps, greases, biological lipids, and related materials.