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M00002859
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ISO 9924-2:2000
Rubber and rubber products -- Determination of the composition of vulcanizates and uncured compounds by thermogravimetry -- Part 2: Acrylonitrile-butadiene and halobutyl rubbersstandard by International Organization for Standardization, 09/01/2000
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This part of ISO 9924 specifies a thermogravimetric method for determining the total organic content, carbon black content, carbonaceous residue and ash in vulcanizates and uncured compounds containing polymers which form a carbonaceous residue on pyrolysis (see 1.2). The loss in mass at around 300 C is an approximate guide to the volatile-matter content of the compound.
The method is suitable for the analysis of rubber compounds and vulcanizates containing the hydrocarbon polymers covered by part 1 of this International Standard plus the following copolymers with polar groups which form a carbonaceous residue on pyrolysis:
acrylonitrile-butadiene copolymers (NBRs);carboxylated acrylonitrile-butadiene copolymers (XNBRs);hydrogenated acrylonitrile-butadiene copolymers (HNBRs);chlorinated isobutylene-isoprene copolymers (CIIRs);brominated isobutylene-isoprene copolymers (BIIRs).