Test items | Factory index | Detection method |
PH (5% water solution) | 4-7 | GB/368-93 |
Unsaturation | ≥0.39 | QB/KLH-20 |
Hydroxyl value, mgKOH/g | 21-26 | GB/T7384-96 |
PEG content (%) | ≤2 | Liquid Chromatography |
Double bond retention rate (%) | ≥95 | Liquid Chromatography |
Test items | Factory index | Detection method |
PH (5% water solution) | 4.0-5.5 | GB/368-93 |
Unsaturation | ≥0.385 | QB/KLH-20 |
Hydroxyl value, mgKOH/g | 21-26 | GB/T7384-96 |
PEG content (%) | ≤1.5 | Liquid Chromatography |
Double bond retention rate (%) | ≥95 | Liquid Chromatography |