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RECORD NUMBER: 17 OF 25

Main Title Method 1664, Revision B: 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.
CORP Author Environmental Protection Agency, Washington, DC. Office of Water.
Year Published 2010
Report Number EPA/821/R-10/001
Stock Number PB2011-100735
Additional Subjects Water pollution sampling ; Hexanes ; Extraction ; Gravimetric analysis ; Test methods ; Chemical analysis ; Silica gel ; Quality control ; Pollution regulations ; Oils ; Greases ; Cruce oil ; Petroleum products ; EPA Method 1664 ; HEM(N-Hexane Extractable Material) ; SGT-HEM(Silica Gel Treated N-Hexane Extractable Material)
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P100IKGL.PDF
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
NTIS  PB2011-100735 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 27p
Abstract
This method is for determination of n-hexane extractable material (HEM; oil and grease) and n-hexane extractable material that is not adsorbed by silica gel (SGT-HEM; non-polar material) in surface and saline waters and industrial and domestic aqueous wastes. Extractable materials that may be determined are relatively non-volatile hydrocarbons, vegetable oils, animal fats, waxes, soaps, greases, and related materials. This method is capable of measuring HEM and SGT-HEM in the range of 5 to 1000 mg/L, and may be extended to higher levels by analysis of a smaller sample volume collected separately.