Over deze norm
This part of ISO 9924 specifies a thermogravimetric method for the determination of the main constituents of rubber compounds such as elastomer (s), carbon black and mineral filler. It allows the "fingerprint" of the tested material to be established. However, the obtained result does not correspond still exactly to the theoretical formula of the rubber. This method applies to raw or compounded rubbers, vulcanised or not after preliminary extraction. This method applies to rubbers with hydrocarbon chains (NR, BR, SBR, IIR, EPDM, ACM, AEM, etc.) used singly or in combination in formulations. In the latter case, the polymer content will correspond to the total rubber, and it will not usually be possible to determine individual polymers. This method applies to rubbers with halogenated, hydrocarbon chains (CR, CSM, FKM, CM, CO, ECO, etc.) or nitrogen containing (NBR, HNBR, NBR / PVC, etc.), as well as to their mixtures. However, these rubbers often form carbonaceous residues which interfere with the analysis. An appropriate procedure will minimize these interferences. This method also applies to rubbers with polysiloxane chain (VMQ, etc.) and to rubbers not listed above.
||Rubber en rubber producten - Bepaling van de samenstelling van gevulcaniseerd en ongevulcaniseerde verbindingen door thermogravimetrie - Deel 3: Koolwaterstof rubbers, gehalogeneerde rubbers en polysiloxaanse rubbers na extractie
||Rubber and rubber products - Determination of the composition of vulcanizates and uncured compounds by thermogravimetry - Part 3: Hydrocarbon rubbers, halogenated rubbers and polysiloxane rubbers after extraction