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ISO 2268:1972
Surface active agents (non-ionic) — Determination of polyethylene glycols and non-ionic active matter (adducts) — Weibull method
Automatically translated name:
Surface active agents (non-ionic) -- Determination of polyethylene glycols and non-ionic active matter (adducts) -- Weibull method
STANDARD published on 1.11.1972
The information about the standard:
Designation standards: ISO 2268:1972
Publication date standards: 1.11.1972
SKU: NS-429429
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 2268:1972 :
Description / Abstract: 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.
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