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ISO 11235:2016

Rubber compounding ingredients — Sulfenamide accelerators — Test methods

Jan 4, 2016
95.99 Withdrawal of Standard   Jul 24, 2023

General information

95.99     Jul 24, 2023

ISO

ISO/TC 45/SC 3

International Standard

83.040.20  

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Scope

ISO 11235:2016 specifies the methods to be used for the evaluation of sulfenamide accelerators:
- MBTS: benzothiazyl disulphide;
- CBS: N-cyclohexylbenzothiazole-2-sulfenamide;
- TBBS: N-tert-butylbenzothiazole-2-sulfenamide;
- DIBS: N,N'-diisopropylbenzothiazole-2-sulfenamide;
- DCBS: N,N'-dicyclohexylbenzothiazole-2-sulfenamide;
- MBS: N-oxydiethylenebenzothiazole-2-sulfenamide.
NOTE Although MBTS is not a sulfenamide, it is the primary decomposition product of these accelerators and quantitatively determined by the method specified in 5.2.
The analytical methods are applicable for most commercial sulfenamide accelerators:
- sulfenamides of primary amines (type I);
- sulfenamides of unhindered secondary amines (type II);
- sulfenamides of hindered secondary amines (type III).
The method (5.2) to determine purity by high performance liquid chromatography (HPLC) is the preferred method.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 11235:1999

NOW

WITHDRAWN
ISO 11235:2016
95.99 Withdrawal of Standard
Jul 24, 2023

REVISED BY

PUBLISHED
ISO 11235:2023

National adoptions

Rubber compounding ingredients — Sulfenamide accelerators — Test methods

60.60 Standard published

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