ISO 2268:1972
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Surface active agents (non-ionic) Determination of polyethylene glycols and non-ionic active matter (adducts) Weibull method
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English, French
01-11-1972
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The method relies on the facts that both non-ionic adducts and polyethylene glycols are soluble in sodium chloride solution, but one is soluble in ethyl acetate whereas the other is not. Separation of the polyethylene glycols and the adducts is, therefore, possible by the following methods: Dissolution of the sample in ethyl acetate and extraction of polyethylene glycols by sodium chloride solution. Extraction of the polyethylene glycols isolated in the sodium chloride solution with chloroform, removal of the solvent and weighing of the residue. Evaporation of the ethyl acetate solution which contains the adducts and weighing of the residue.
| DevelopmentNote |
Also numbered as BS 6829-4.2(1989) (09/2005)
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| DocumentType |
Standard
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| Pages |
5
|
| PublisherName |
International Organization for Standardization
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| Status |
Current
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| Standards | Relationship |
| UNE 55519:1974 | Identical |
| NFT 73 274 : 1978 | Similar to |
| NBN T 63 120 : 1980 | Identical |
| DIN ISO 2268:1980-07 | Identical |
| SAC GB/T 5560 : 2003 | Identical |
| NF EN 12139 : 1999 | Similar to |
| BS 3762:1964 | Similar to |
| BS 6829-0:1987 | Analysis of surface active agents (raw materials) General introduction |
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