BS ISO 16560:2015
$102.76
Surface active agents. Determination of polyethylene glycol content in nonionic ethoxylated surfactants. HPLC method
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 18 |
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.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Reagents |
| 10 | 6 Apparatus 7 Sampling 7.1 Preparation of the test sample 7.2 Preparation of test solutions |
| 11 | 8 Procedure 8.1 Apparatus settings 8.2 Calibration 8.2.1 Preparation of calibration solutions |
| 12 | 8.2.2 Calibration curve 8.3 Determination |
| 13 | 9 Expression of results 10 Precision 10.1 Repeatability 10.2 Reproducibility 11 Test report |
| 14 | Annex A (informative) Results of interlaboratory tests for fatty alcohol ethoxylate |
