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ISO 8215:1985

Surface active agents — Washing powders — Determination of total silica content — Gravimetric method

Standard Details

From a test portion all ethanol-soluble matter is removed by extraction with ethanol. The solution of the ethanol-insoluble residue is treated with hydrochloric acid and evaporated to dryness. The residue is dissolved in water and the operations are repeated twice. From the solution obtained after this operations the precipitate is filtered, washed, heated to 900 °C and weighed.

General Information

Status : Published
Standard Type: Main
Document No: ISO 8215:1985
Document Year: 1985
Pages: 3
Edition: 1

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ISO 8215:1985
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