2. Content含量
-1.4-cis-links, %, not less than1,4順式鏈含量
-1.2-vinyl-links, %, not more than1,2乙烯基含量
-1.4-trans-links, %, not less than1,4反式鏈含量
34-40
18
50
3. Mooney viscosity, MB 1 + 4 (100C), within the limited range 門尼粘度 46-60
4. Viscosity spread within one lot 單批最大粘度差 6
5. Ash mass content, %, not more than 灰份 0.1
6. Loss of mass at drying 干燥失重，揮發份 0.6
7. Mass content of water, %, not more than 水含量 0.2
8. Mass gel content, %, not more than凝膠含