| 項目 | 優級品 | 一級品 | 合格品 |
| 揮發份%≦ | 0.75 | 1.00 | 1.30 |
| 總灰份%≦ | 0.30 | 0.30 | 0.30 |
| 生膠門尼粘度 | 45.0±5 | 45.0±5 | 45.0±7 |
| 混煉膠門尼粘度ML100≦ | ≦85.0 | ≦85.0 | ≦85.0 |
| 300%定伸應力/Mpa 25min 35min 50min | 6.5~10.5 7.0~11.0 6.8~10.8 | 6.2~10.7 6.7~11.2 6.5~11.0 | 6.0~11.5 6.5~11.5 6.3~11.3 |
| 拉伸強度Mpa 35min≧ | 14.2 | 13.7 | 13.2 |
| 扯斷伸長率%35min≧ | 450 | 430 | 430 |
| 防老劑 | 非污染 | 非污染 | 非污染 |