Published: Jan 1960
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(a) This method covers the separation of chloroform-extractable matter from industrial water and industrial waste water, and the gravimetric determination of that portion of the extract which is not lost upon evaporation of the chloroform. This residue may contain one or more members of several classes of compounds, among which are heavy oils and fats, trace amounts of phenols, rubber and certain resins, asphaltenes and carbenes, and decomposition products of tannin. (b) This method is applicable to the determination of heavy oils in industrial water and industrial waste water. It is not intended to determine materials that volatilize under the conditions of test nor to determine specific oils, greases, and organic compounds. When such information is desired, the residue obtained by this method may be subjected to further extraction with specific solvents agreed upon by the interested parties.
Paper ID: STP44259S