GB/T 21840-2025 Active National standards

GB/T 21840-2025 Vulcanizing accelerator—N-tert-butyl-1,3-benzothiazole-2-sulfenamide(TBBS)

Publish Date: 2025-08-01 Implement Date: 2026-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 21840-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Chemical auxiliaries

ICS Name: Rubber synthetic ingredients

Publish Date: 2025-08-01

Implement Date: 2026-02-01

Pages: 16 pages

Scope

This document specifies the technical requirements such as the physicochemical properties of the vulcanization accelerator N-tert-butyl-1,3-benzothiazole-2-thiosulfonamide (hereinafter referred to as vulcanization accelerator TBBS), describes the corresponding batching rules, sampling, and testing methods, and stipulates the aspects of marking, packaging, transportation, and storage.
This document is applicable to the detection of vulcanization accelerator TBBS, which is made from tert-butylamine and vulcanization accelerator MBT through oxidation.

Development Information

Word Count: 19 Thousand words Pages: 16 pages

Replace the following standards

GB/T 21840-2008 Vulcanizing accelerator TBBS

Referenced Standards

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions GB/T 603-2002 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 603-2023 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 617-2006 Chemical reagent—General method for the determination of melting range GB/T 6679-2003 General rules for sampling solid chemical products GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 11409-2008 Test methods rubber antiagers and vulcanizing accelerators GB/T 21184-2007 Rubber compounding ingredienets—Sulfenamide accelerators—Test methods

Related Standards

GB/T 11409.4-1989 Replaced

GB/T 11409.4-1989 Test method of weight loss on heating for rubber antiagers and vulcanizing accelerators

Publish Date: 1989-03-31

GB/T 11409.5-1989 Replaced

GB/T 11409.5-1989 Test method of residue on sieve for rubber antiagers and vulcanizing accelerators

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GB/T 11409.7-1989 Replaced

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GB/T 11409.8-1989 Replaced

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GB/T 12827-1991 Replaced

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Publish Date: 1991-04-23

GB/T 13021-1991 Replaced

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