3M™ Empore™ Oil & Grease 90 mm Disk

Manufacturer 3M Bioanalytical


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The Oil & Grease Disk was specifically designed for EPA Method 1664 (N-Hexane Extractable Materials (HEM) and Silica Gel Treated N-Hexane Extractable Material (SGT-HEM) by Extraction and Gravimetry).  EPA Method 1664 Revision A was approved for use in the United States and published in the Federal Register on May 14, 1999.  The Oil & Grease Disk incorporates C18 sorbent particles within a hydrophobic matrix.  For EPA Method 1664, C18 extractable materials are collected from waste water.  These materials are eluted from the disk using hexane.