Method for the gravimetric determination of oil and grease

Details Method for the gravimetric determination of oil and grease Method for the gravimetric determination of oil and grease

1993-05-26

1994-03-15

Housel, James C.

Chemistry: analytical and immunological testing

Lubricant, grease, mineral oil, hydrocarbon oil product, or...

436 8, 73152, 73153, G01N 3100, G01N 3303, G01N 3320

Patent

active

052945537

ABSTRACT:
A non-halogenated solvent mixture for gravimetric determination of grease and oil in an aqueous or a solid matrix comprising a mixture of n-hexane and methyl tertiary-butyl ether present in a volume ratio of 80% to 20% respectively. A method of gravimetric determination of grease and oil in an aqueous or a solid matrix which comprises preparing a sample; extracting the same using this non-halogenated solvent mixture; distilling; evaporating and weighing the extraction residue.

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The Clean Water Act (CWA) Method 413.1, "Oil and Grease, Total, Recoverable", USEPA, Environmental Monitoring and Support Laboratory, Cincinnati, Ohio 1974.
Standard Method 5520 "Oil and Grease", Standard Methods for the Examination of Water and Wastewater, 17th Ed. (1989), pp. 5-41--5-48.
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