ISO 16560
Surface active agents - Determination of polyethylene glycol content in nonionic ethoxylated surfactants - HPLC method
| Organization: | ISO |
| Publication Date: | 15 April 2015 |
| Status: | active |
| Page Count: | 14 |
| ICS Code (Surface active agents): | 71.100.40 |
scope:
This International Standard specifies a method for the determination of the polyethylene glycol (PEG) content in aromatic and aliphatic non-ionic surface active agents of the type R-(O-C2H4) n OH; where n is the mean ethylene oxide (EO) value. It is applicable to all ethoxylated products soluble in methanol or methanol/water mixture. This method applies to PEG concentrations as mass fraction greater than or equal to 0,1 %. This International Standard is not applicable to PEG whose molar mass is lower than 400 g/mol. Monomeric ethylene glycol, diethylene glycol, triethylene glycol, and glycerol are not detected.
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