228778

ISO 8214:1985

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

standard by International Organization for Standardization , 12/01/1985

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Full Description

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.

 

Product Details

Published:
12/01/1985
Number of Pages:
3
File Size:
1 file , 280 KB
Same As:
BS 3762-3.22:1986
Note:
This product is unavailable in Ukraine, Russia, Belarus