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ISO 8215:1985

Surface active agents — Washing powders — Determination of total silica content — Gravimetric method ISO 8215:1985

Publication date:   Dec 12, 1985

General information

90.20 Standard under periodical review   Apr 15, 2024

ISO

ISO/TC 91 Surface active agents

International Standard

71.100.40   Surface active agents

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Scope

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.

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PUBLISHED
ISO 8215:1985
90.20 Standard under periodical review
Apr 15, 2024