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ISO 8214:1985

Surface active agents -- Washing powders -- Determination of inorganic sulfates -- Gravimetric method
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ISO 8214:1985

Surface active agents -- Washing powders -- Determination of inorganic sulfates -- Gravimetric method

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From a test portion all ethanol-soluble matter is removed by extraction with ethanol. In the presence of silicates the solution of the residue is treated with hydrochloric acid and evaporated to dryness. The residue is dissolved in water and the operations are repeated twice. The last solution is filtered and in the filtrate or in the silicatefree solution of the first step the sulfates are precipitated with barium chloride. The precipitate is filtered, washed, heated at 900 degree Celsius and weighed.

SDO ISO: International Organization for Standardization
Document Number ISO 8214
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 91
Publish Date Document Id Type View
Not Available ISO 8214:1985 Revision