ISO 8215:1985

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

Publication date: 12 dhj 1985

General information

Current stage: 90.60 Effective date: 3 sht 2024

Originator: ISO

Owner: ISO/TC 91

Type: International Standard

ICS: 71.100.40

Gjuha: frëngjisht anglisht

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Statusi: Publikuar

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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
90.60 Close of review
3 sht 2024

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