Index Name |
Super Grade X |
1st Grade WW |
2nd Grade WG |
3rd Grade N |
4th Grade M |
5th Grade K |
Color |
Yellowish |
Pale yellow |
Yellow |
Deep yellow |
Yellowish brown |
Yellowish red |
Conforming to the demands on the standard color spaces of rosin color grade glass |
Softening Point (ring & ball) °C ≥ |
76 |
75 |
74 |
Acid value mgKOH/g≥ |
166 |
165 |
164 |
Insoluble matter in ethanol % ≤ |
0.03 |
0.03 |
0.04 |
Non-saponifiable matter%≤ |
5 |
5 |
6 |
Ash %≤ |
0.02 |
0.03 |
0.04 |
