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

Technical Report · Mon Feb 01 00:00:00 EST 1999

OSTI ID:6481326

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.

• Research Organization: Environmental Protection Agency, Office of Water, Washington, DC (United States)
• OSTI ID: 6481326
• Report Number(s): PB-99-121949/XAB; EPA-821/R-98/002
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
GREASES
HEXANE
MEASURING METHODS
OILS
SEAWATER
SILICA GEL
SOLVENT EXTRACTION
SURFACE WATERS
WASTE WATER
WATER TREATMENT
ADSORBENTS
ALKANES
EXTRACTION
HYDROCARBONS
HYDROGEN COMPOUNDS
LIQUID WASTES
LUBRICANTS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
SEPARATION PROCESSES
WASTES
WATER
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
400102 - Chemical & Spectral Procedures