Item |
Index |
|
Ⅰtype |
Ⅱtype |
|
Appearance |
Transparent liquid, no insoluble water and mechanical impurities |
|
Color, Hazen unit (platinum-cobalt color code) ≤ |
10 |
20 |
Density(20℃),kg/m3 |
null |
0.865 ~ 0.868 |
purity /% ≥ |
99.9 |
null |
Hydrocarbon impurity content: benzene /% ≤ C3 Aromatic hydrocarbons /% ≤ None aromatic hydrocarbons /% ≤ |
0.03 0.05 0.1 |
0.10 0.10 0.25 |
Acid colorimetric |
The acid layer is not darker than the standard solution containing 0.2g potassium dichromate in 1000mL dilute acid |
|
Total sulfur content /(mg/kg) ≤ |
2 |
|
Evaporation residue mg/100mL ≤ |
3 |
|
Neutral test |
Neutral |