| Characteristics | Index | Method | Results | ||||||
| Specification | Top Grade | First Grade | Qualified | / | / | ||||
| Appearance:Light, translucent, the primary shape is block. | Not contain any coking particles, oil stain and mechanical impurities. | Not contain any mechanical impurities. | Visual | Not contain any coking particles, oil stain and mechanical impurities. | |||||
| Fugitive Constituent | ≤0.5% | ≤0.8% | ≤1.1% | GB/T24131.1 | 0.37 | ||||
| Ash Specification | ≤0.2% | ≤0.2% | ≤0.2% | GB/T4498.1 | 0.03 | ||||
| Mooney viscosity ML(1+4), 100ºC | 45±4 | 45±5 | 45±7 | GB/T1232.1 | 45.0 | ||||
| Mix mooney viscosity ML(1+4),100ºC | ≤65 | ≤67 | ≤70 | GB/T1232.1 | 56.0 | ||||
| 300%Tensile Stress 145ºC | 25min | 7.0-12.0MPa | GB/T528 | 9.5 | |||||
| 35min | 8.0-13.0MPa | 9.2 | |||||||
| 50min | 8.0-13.0MPa | 9.2 | |||||||
| Tensile strength 145ºC, 35min | ≥13.2MPa | GB/T528 | 13.6 | ||||||
| Elongation at break 145ºC, 35min | ≥330% | GB/T528 | 394 | ||||||
| Cure characteristics 160ºC,25min | ML(dN·m) | Report value | GB/T 25268 | 2.6 | |||||
| MH(dN·m) | Report value | GB/T 25268 | 16.0 | ||||||
| TS1 (min) | Report value | GB/T 25268 | 2.6 | ||||||
| TC50 (min) | Report value | GB/T 25268 | 5.7 | ||||||
| TC90(min) | Report value | GB/T 25268 | 9.3 | ||||||
| Conclusion | Top Grade Product | ||||||||
