Historical
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 rubbers
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).
CONTENT PROVIDER
International Organization for Standardization [iso]
International Organization for Standardization [iso]
