ASTM D5044-06(2012)
Standard Test Method for Rubber Compounding Materialsmdash;Free 2-Mercaptobenzothiazole (MBT) in Benzothiazyl Disulfide (MBTS)

Standard No.

ASTM D5044-06(2012)

Release Date

2006

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D5044-06(2017)

Latest

ASTM D5044-06(2021)

Scope

2-Mercaptobenzothiazole (MBT) is usually the major impurity in MBTS. Free MBT may be determined by this test method.

MBT and MBTS are used for rubber and latex vulcanization acceleration. The amount of MBT in MBTS may be of importance in predicting performance in rubber compounds and for raw material purchase and control.

This test method may be used as a quality control tool and for research and development work.

1.1 This test method covers the procedure for estimation of the acidic impurities in benzothiazyl disulfide (MBTS).

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 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 and health practices and determine the applicability of regulatory limitations prior to use.

ASTM D5044-06(2012) Referenced Document

• ASTM D1193 Standard Specification for Reagent Water
• ASTM D4483 Standard Practice for Determining Precision for Test Method Standards in the Rubber and Carbon Black Industries

ASTM D5044-06(2012) history

• 2021 ASTM D5044-06(2021) Standard Test Method for Rubber Compounding Materials—Free 2-Mercaptobenzothiazole (MBT) in Benzothiazyl Disulfide (MBTS)
• 2006 ASTM D5044-06(2017) Standard Test Method for Rubber Compounding Materials&x2014;Free 2-Mercaptobenzothiazole (MBT) in Benzothiazyl Disulfide (MBTS)
• 2006 ASTM D5044-06(2012) Standard Test Method for Rubber Compounding Materialsmdash;Free 2-Mercaptobenzothiazole (MBT) in Benzothiazyl Disulfide (MBTS)
• 2006 ASTM D5044-06 Standard Test Method for Rubber Compounding Materials8212;Free 2-Mercaptobenzothiazole (MBT) in Benzothiazyl Disulfide (MBTS)
• 2002 ASTM D5044-02 Standard Test Method for Rubber Chemicals-Free 2-Mercaptobenzothiazole (MBT) in Benzothiazyl Disulfide (MBTS)
• 1997 ASTM D5044-97 Standard Test Method for Rubber Chemicals-Free 2-Mercaptobenzothiazole (MBT) in Benzothiazyl Disulfide (MBTS)