Transcription of N-Hexane Extractable Material (HEM; Oil and …
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N-Hexane Extractable Material (HEM; Oil and …
United StatesOffice of WaterEPA-821-R-98-002 Environmental Protection Washington, DC 20460PB99-121949 AgencyFebruary 1999 Method 1664, Revision A: N-Hexane Extractable Material (HEM; Oiland Grease) and Silica Gel TreatedN- hexane Extractable Material (SGT-HEM; Non-polar Material ) by Extractionand GravimetryiiAcknowledgmentsThis method was prepared under the direction of William A. Telliard of the Engineering andAnalysis Division within EPA's Office of Water. This document was prepared under EPA ContractNo. 68-C-98-139by DynCorp Information and Enterprise method has been reviewed by the Engineering and Analysis Division, EnvironmentalProtection Agency, and approved for publication. Mention of trade names or commercial productsdoes not constitute and endorsement or recommendation for of and of and and Collection, Preservation, and and Analysis and of Definitions and 1664 February 1999ivIntroductionAs a party to the Montreal Protocol on Substances that Deplete the Ozone Layer and as required bylaw under the Clean Air Act Amendments of 1990 (CAAA), the United States is committed tocontrolling and eventually phasing out the use of chlorofluorocarbons (CFCs).
Method 1664 February 1999 1 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)
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