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sklademVydáno: 2015-04-30
BS ISO 16560:2015
Surface active agents. Determination of polyethylene glycol content in nonionic ethoxylated surfactants. HPLC method
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Označení normy: | BS ISO 16560:2015 |
Počet stran: | 18 |
Vydáno: | 2015-04-30 |
ISBN: | 978 0 580 77090 6 |
Status: | Standard |
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BS ISO 16560:2015
This standard BS ISO 16560:2015 Surface active agents. Determination of polyethylene glycol content in nonionic ethoxylated surfactants. HPLC method is classified in these ICS categories:
- 71.100.40 Surface active agents
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.