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See Chinese contents: GB/T 24131.1-2018 GB/T 24131.1-2018: Rubber, raw -- Determination of volatile matter content -- Part 1: Hot-mill method and oven method
This part of GB/T 24131.1 specifies two methods for determining the volatile matter content of raw rubber by hot-mill method and oven method. These methods are suitable for determining the volatile matter content of the group-R rubbers as listed in GB/T 5576. The group-R rubber refers to a rubber containing an unsaturated carbon chain, such as natural rubber and a rubber which is at least partially synthesized from a diolefin. These methods are also applicable to the determination of other rubbers, but in this case, it must be verified that the change in mass is due only to the loss of actual volatile matter rather than rubber degradation.
