GB/T 3780.31-2025 Active National standards

GB/T 3780.31-2025 Carbon black—Part 31:Determination of total hydrogen content

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

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Basic Information

Standard Code: GB/T 3780.31-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Carbon black

ICS Name: Rubber synthetic ingredients

Publish Date: 2025-08-01

Implement Date: 2026-02-01

Pages: 16 pages

Scope

This document describes a method for determining the total hydrogen element content that can be released from carbon black at temperatures above 2,000°C using a thermal conductivity detector (TCD).
This document is applicable to the determination of carbon black used in rubber products.

Development Information

Word Count: 17 Thousand words Pages: 16 pages

Same series standard

GB/T 3780.7-2025 Carbon black—Part 7:Determination of pH value GB/T 3780.21-2025 Carbon black—Part 21:Determination of sieve residue—Water washing method

Referenced Standards

GB 3778-1994 Carbon black for use in rubber industry GB 3778-2003 Carbon black for use in rubber products GB/T 3778-2011 Carbon black for use in rubber products GB/T 3778-2021 Carbon black for use in rubber products GB/T 7767-2003 Standard terminology relating to carbon black GB/T 7767-2014 Standard terminology relating to carbon black GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values

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

Publish Date: 1989-03-31

GB/T 11409.7-1989 Replaced

GB/T 11409.7-1989 Test method of ash for rubber antiagers and vulcanizing accelerators

Publish Date: 1989-03-31

GB/T 11409.8-1989 Replaced

GB/T 11409.8-1989 Test method of viscosity for rubber antiagers and vulcanizing accelerators—Rotational viscometer method

Publish Date: 1989-03-31

GB/T 12827-1991 Replaced

GB/T 12827-1991 Standard reference acetylene black and standard practice for evaluation

Publish Date: 1991-04-23

GB/T 13021-1991 Replaced

GB/T 13021-1991 Determination for the carbon black content of polyethylene pipes and fittings by calcination and pyrolysis

Publish Date: 1991-07-03