ASTM D4936-10(2019)
Standard Test Method for Mercaptobenzothiazole Sulfenamide Assay by Reduction/Titration
- Standard No.
- ASTM D4936-10(2019)
- Release Date
- 2019
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D4936-10(2023)
- Latest
- ASTM D4936-10(2023)
- Scope
- 1.1 This test method covers the determination of assay on mercaptobenzothiazole (MBT) sulfenamides. It is based on a titration of the basic amines liberated upon reduction of the sulfenamides with hydrogen sulfide gas (H2S)2,3 or 2-mercaptobenzothiazole. 1.2 Any free amine (HNR2) or weak acid salts of the corresponding amine (HX·HNR2) are titrated prior to reduction. This titer is used to calculate percent basic impurity (as free amine) in the sample. 1.3 With the indicated modifications, this test method is applicable to all MBT sulfenamides, that is, N-cyclohexyl-2benzothiazolesulfenamide (CBS), N,N-diisopropyl-2benzothiazyl sulfenamide (DIBS), 2 (morpholinothio) benzothiazole (MBS), N,N-dicylohexyl-2-benzothiazyl sulfenamide (DCBS), N-tert-butyl-benzothiazole-sulfenamide (TBBS), and 4-morpholinyl-2-benzothiazyl disulfide (MBSS). 1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 9. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM D4936-10(2019) Referenced Document
- ASTM D4483 Standard Practice for Determining Precision for Test Method Standards in the Rubber and Carbon Black Industries
ASTM D4936-10(2019) history
- 2023 ASTM D4936-10(2023) Standard Test Method for Mercaptobenzothiazole Sulfenamide Assay by Reduction/Titration
- 2019 ASTM D4936-10(2019) Standard Test Method for Mercaptobenzothiazole Sulfenamide Assay by Reduction/Titration
- 2010 ASTM D4936-10(2015) Standard Test Method for Mercaptobenzothiazole Sulfenamide Assay by Reduction/Titration
- 2010 ASTM D4936-10 Standard Test Method for Mercaptobenzothiazole Sulfenamide Assay by Reduction/Titration
- 2005 ASTM D4936-05 Standard Test Method for Mercaptobenzothiazole Sulfenamide Assay by Reduction/Titration
- 1996 ASTM D4936-96(2001) Standard Test Method for Mercaptobenzothiazole Sulfenamide Assay by Reduction/ Titration
- 1996 ASTM D4936-96 Standard Test Method for Mercaptobenzothiazole Sulfenamide Assay by Reduction/ Titration
