Grade: qualified | ||
Grade: CPM-31 | ||
Test items | Index value | measured value |
Number of impurity particles/piece ≤ | 40 | 11 |
Mass fraction of volatile matter (including water) /% ≤ | 0.5 | 0.22 |
Mass fraction of residue on sieve /% | 250μm mesh≤ 0.2 | 0.06 |
63μm mesh≤ 3.0 | 0.4 | |
Whiteness (160℃ 10min) /% ≥ | 80 | 92 |
Scraper fineness/μm ≤ | 100 | 27 |
Paste thickening rate (24hr)/% ≤ | / | / |
PH value of water extract ≤ | / | / |
Mass fraction of alcohol extract/% ≤ | / | / |
Average degree of polymerization | 1350-1100 | 1284 |
Standard viscosity (Type B) | 2020 | |
Exterior | White powder solid |