Item |
Index |
||
superior grade |
A grade |
qualified |
|
Appearance |
Colorless transparent liquid, no smell, no impurities |
||
Chromaticity, Hazen unit (platinum-cobalt color code) ≤ |
5 |
10 |
|
Density,ρ20/(g/cm3) |
0.791 ~ 0.792 |
0.791 ~ 0.793 |
|
Boiling range①(0℃,101.3kPa)/℃ ≤ |
0.8 |
1.0 |
1.5 |
Potassium permanganate test /min≥ |
50 |
30 |
20 |
Water miscibility test |
pass(1+3) |
pass(1+9) |
null |
Water % ≤ |
0.10 |
0.15 |
0.20 |
acid(HCOOH)%≤ or alkali (NH3)%≤ |
0.0015 0.0002 |
0.0030 0.0008 |
0.0050 0.0015 |
Carbonyl compound(HCHO)%≤ |
0.002 |
0.005 |
0.010 |
Evaporation residue %≤ |
0.001 |
0.003 |
0.005 |
Sulphuric acid washing test, Hazen unit (platinum-cobalt color code) ≤ |
50 |
null |
|
Note: ① including 64.6 ℃ plus or minus 0.1 ℃ |