SS-ISO-10398 › Rubber - Identification of accelerators in cured and uncured compounds
SS-ISO-10398
-
EDITION 1
-
CURRENT
Document Center Inc. is an authorized dealer of SIS standards.
The following bibliographic material is provided to assist you with your purchasing decision:
The following bibliographic material is provided to assist you with your purchasing decision:
1.1 This International Standard specifies methods using gas chromatography (GC) and thin layer chromatography (TLC) for the separation and identification of the following classes of accelerators in vulcanized and unvulcanized compounds: - thiazoles - sulfenamides - thiurams and dithiocarbamates - guanidines - dithiodimorpholine 1.2 When 2-mercaptobenzothiazole (MBT) is identified and no sulfenamides are present, it is not possible to establish if the original accelerator was MBT and/or its salts or 2,2-dibenzothiazoledisulfide (MBTS) as each of these accelerators may be produced from the others during the vulcanization process. 1.3 When sulfenamides are identified, it is not possible to establish if MBT and/or its salts and MBTS are present as these accelerators may be produced from 2-mercaptobenzothiazole sulfenamides during the vulcanization process. 1.4 The methods do not distinguish thiurams and dithiocarbamates derived from the same amines. 1.5 From the morpholine identification it is not possible to determine if the initial accelerator is 2-morpholinothio-benzothiazole (MBS) or dithiomorpholine as morpholine may be formed from MBS and dithiodimorpholine during the vulcanization process. 1.6 The separation of accelerator compounds from unvulcanized compounds is relatively straightforward whereas separation from vulcanized compounds is difficult due to the lesser ability of solvents to penetrate the vulcanized matrix. 1.7 Some compounding ingredients may interfere with method B. In such cases methods A or C shall be used.
To find similar documents by classification:
83.060 (Rubber Raw rubber, see 83.040.10)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Designation Name
SS-ISO 10398
Revision Level
EDITION 1
Status
Current
Publication Date
Sept. 7, 2001
Language(s)
English
Page Count
13
International Equivalent
ISO 10398:1998 IDT