Chinese Standard: GB/T 3517-2014

Rubber, raw natural—Determination of plasticity retention index(PRI)

MOD  ISO 2930:2009

全国橡胶与橡胶制品标准化技术委员会天然橡胶分技术委员会(SAC/TC 35/SC 8)

本标准规定了测定天然生胶塑性保持率（PRI）的方法。
PRI是天然生胶耐热氧化的量度，该数值越高表明耐热氧化性能越好。

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