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.

Bibliographic Details
Corporate Authors: United States. Environmental Protection Agency. Office of Water, DynCorp
Format: Government Document eBook
Language:English
Published: Washington, DC : U.S. Environmental Protection Agency, Office of Water, [1999]
Subjects:
Online Access:https://purl.fdlp.gov/GPO/LPS46369
Description
Item Description:Title from title screen (viewed on May 14, 2004).
Title from title screen (viewed May 14, 2004).
"February 1999."
"EPA-821-R-98-002."
"PB99-121949."
"Prepared under EPA Contract number 68-C-98-139 by DynCorp Information and Enterprise Technology"--P. [2].
Electronic resource.
Physical Description:1 online resource (28 unnumbered pages)
Format:Mode of access: Internet from the EPA web site. Address as of 5/14/2004: http://www.epa.gov/ost/methods/1664f051.html ; current access available via PURL.