ISO-2268 › Surface active agents (non-ionic) -- Determination of polyethylene glycols and non-ionic active matter (adducts) -- Weibull method
The following bibliographic material is provided to assist you with your purchasing decision:
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.
To find similar documents by classification:
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Customers who bought this document also bought:MIL-STD-810
Environmental Engineering Considerations and Laboratory Tests
Configuration Management (No Superseding Document)
Reliability Prediction of Electronic Equipment
Nov. 15, 1972
ISO TC 91