Industrial Glycerin
Standard:GB/T13206-1991, Technical index:
Item |
Index |
Top-grade |
Second grade |
Appearance |
transparent without suspended substance |
transparent without suspended substance |
Odor |
without unpleasant odor |
without unpleasant odor |
Color, Hazen ≤ |
20 |
70 |
Glycerin , % ≥ |
98.5 |
95.0 |
Density(20 °C), g/ml ≥ |
1.2572 |
1.2481 |
Chloride (as Cl), % ≤ |
0.001 |
- |
Sulfatizing ash , % ≤ |
0.01 |
0.05 |
Acidity or Alkalinity, mmol/100g ≤ |
0.064 |
0.30 |
Saponification equivalent , mmol/100g ≤ |
0.64 |
3.0 |
As(as As), mg/kg ≤ |
2 |
- |
Heavy metals (as Pb), mg/kg ≤ |
5 |
- |
Reductive matter |
no precipitation or silver mirror |
- |
|
