Method 1664: N-Hexane Extractable Material (HEM) and Silica Gel Treated N-Hexane Extractable Material (SGT-HEM) by Extraction and Gravimetry (Oil and Grease and Total Petroleum Hydrocarbons)
|EPA Number: ||821B94004b|
|Date of Publication:||April, 1995|
|Audience||concerned citizens, industry|
[BE SURE TO INCLUDE THE ERRATA SHEET FOR EQUATION 1] Method 1664 was developed by the United States Environmental Protection Agency Office of Science and Technology to replace previously used gravimetric procedures that employed Freon-113, a Class I CFC, as the extraction solvent for the determination of oil and grease and petroleum hydrocarbons. More...
Water Pollution Monitoring
EPA Method 1664