Item | Technical Grade | ||
high-class | First-class | Qualified | |
Acetic acid content | 99.8min | 99.5min | 99min |
Chromaticity(in Hazen)(Pt-Co) | 10 max | 20max | 30max |
Moisture | 0.15max | 0.20max | -- |
Aldehyde content | 0.03max | 0.05max | 0.10max |
Formic acid content | 0.05max | 0.10max | 0.30max |
Vaporized residue | 0.01max | 0.02max | 0.03max |
Iron content (based on Fe) | 0.000 04max | 0.000 2max | 0.000 4max |