Item firstclass secondcl…
| Item | first class | second class | test method |
| Moisture(105±2°C,2h)% ≤ | 5.0 | 5.0 | GB/T2288 |
| Ash(800±10°C,4h)% ≤ | 0.3 | 0.3 | GB/T2295 |
| Softening point °C | 100-115 | 100-120 | GB/T2294 |
| Density(normal temperature g/cm3) | 1.24-1.34 | GB/T8928 | |
| Content of β-resin % ≥ | 18 | 16 | |
| Coked value % | 60±5 | 55±5 | GB/T8727 |
| Quinoline insoluble% | 8
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