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Water: Petrochemicals-Oils

Oil and Grease

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Method 1664, Revision A: N-Hexane Extractable Material (HEM; Oil and Grease) and Silica Gel Treated N-Hexane Extractable Material (SGT-HEM; Non-polar Material) By Extraction and Gravimetry

  Note: EPA no longer updates this information, but it may be useful as a reference or resource.

Proposed Rule (1996)

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