GB/T 46228-2025 Active National standards

GB/T 46228-2025 Brominated isobutene-isoprene rubber(BIIR)

Publish Date: 2025-08-29 Implement Date: 2026-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 46228-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Synthetic rubber

ICS Name: Rubber

Publish Date: 2025-08-29

Implement Date: 2026-03-01

Pages: 12 pages

Scope

This document specifies the product grades, requirements, inspection rules, marking and accompanying documents, packaging, transportation, and storage of brominated isobutylene-isoprene rubber (BIIR) (commonly known as brominated butyl rubber), and describes the corresponding test methods for BIIR technical indicators.
This document is applicable to isobutylene-isoprene rubber obtained by low-temperature copolymerization of isobutylene and isoprene using methyl chloride as a solvent, and subsequently brominated to produce brominated butyl rubber.

Development Information

Word Count: 10 Thousand words Pages: 12 pages

Referenced Standards

GB/T 1232.1-2000 Rubber,unvulcanized—Determinations using a shearing-disc viscometer—Part 1:Determination of Mooney viscosity GB/T 1232.1-2016 Rubber,unvulcanized—Determinations using a shearing-disc viscometer—Part 1:Determination of Mooney viscosity GB/T 4498.1-2025 Rubber—Determination of ash—Part 1:Muffle furnace method GB 5577-1985 Codification of types for synthetic rubbers GB/T 5577-2008 Codification of types for synthetic rubbers GB/T 5577-2022 Specification for the codification of synthetic rubber GB/T 15340-1994 Rubber, raw, natural and synthetic Sampling and further preparative procedures GB/T 15340-2008 Rubber, raw natural and raw synthetic—Sampling and further preparative procedures GB/T 15340-2025 Rubber,raw natural and raw synthetic—Sampling and further preparative procedures GB/T 19187-2003 Sampling procedures for inspection of raw synthetic rubber GB/T 19187-2016 Sampling procedures for inspection of raw synthetic rubber GB/T 19188-2003 Rubber, raw natural and raw synthetic—General guidance on storage GB/T 24131.1-2018 Rubber,raw—Determination of volatile matter content—Part 1:Hot-mill method and oven method GB/T 24131.2-2017 Rubber,raw—Determination of volatile-matter content—Part 2:Thermogravimetric methods using an automatic analyser with an infrared drying unit GB/T 32676-2016 Halogenated isobutene-isoprene rubber(BIIR and CIIR)—Evaluation procedures SH/T 1839-2023 Determination of Br content in brominated isobutylene-isoprene rubber (BIIR) by X-ray fluorescence spectroscopy GB/T 9869.3-2025 Rubber—Measurement of vulcanization characteristics usingcuremeters—Part 3:Rotorless curemeter

Related Standards

GB/T 1685-1982 Replaced

GB/T 1685-1982 Rubber, vulcanized—Determination of stress relaxation in compression at normal and at elevated temperature

Publish Date: 1982-03-12

GB/T 3515-1983 Replaced

GB/T 3515-1983 Rubber, vulcanized—determination of carbon black content—pyrolytic method

Publish Date: 1983-03-03

GB/T 4497-1984 Replaced

GB/T 4497-1984 Vulcanized rubber—Determination of total sulphur content—Oxygen combustion flask method

Publish Date: 1984-06-17

GB/T 6030-1985 Replaced

GB/T 6030-1985 Vulcanized rubber—Determination of carbon black dispersion—Micrographic method

Publish Date: 1985-05-24

GB 5577-1985 Replaced

GB 5577-1985 Codification of types for synthetic rubbers

Publish Date: 1985-10-26

GB/T 1688-1986 Replaced

GB/T 1688-1986 Rubber, vulcanized—Determination of tension fatigue

Publish Date: 1986-11-24