GB/T 31970-2025 Active National standards

GB/T 31970-2025 Performance requirements and bench test methods for air brake caliper assemblies of vehicles

GB/T 31970-2025 Performance requirements and bench test methods for air brake caliper assemblies of vehicles

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

Basic Information

Standard Code: GB/T 31970-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Brake system

ICS Name: Brake system

Publish Date: 2025-08-29

Implement Date: 2026-03-01

Pages: 24 pages

Scope

This document specifies the performance requirements of automotive pneumatic brake calipers, the related testing requirements, and describes the bench test method.
This document is applicable to floating pneumatic brake calipers (excluding brake chambers) whose working medium is compressed air.

Development Information

Word Count: 33 Thousand words Pages: 24 pages

Replace the following standards

GB/T 31970-2015 Performance requirements and bench test methods for air brake caliper assemble of automobile

Referenced Standards

GB/T 5620-2002 Road vehicles—Braking of automotive vehicles and their trailers—Vocabulary GB/T 5620-2020 Road vehicles—Vocabulary and definition for braking of automotive vehicles and their trailers GB/T 10125-2021 Corrosion tests in artificial atmospheres—Salt spray tests QC/T 239-2015 Technical requirements and bench testing methods for commercial vehicle brake systems QC/T 316-2017 QC/T 316-2017 Road vehicle brake drum fatigue strength bench test method QC/T 556-2023 Car brake temperature measurement method and thermocouple installation requirements QC/T 316-2026 Car brake fatigue strength technical requirements and bench testing methods

Related Standards

GB/T 5335-1985 Replaced

GB/T 5335-1985 Automobile hydraulic pressure test connection for braking equipment

Publish Date: 1985-08-31

GB/T 5345-1985 Replaced

GB/T 5345-1985 Labelling of containers for brake fluid

Publish Date: 1985-09-03

GB/T 5921-1986 Replaced

GB/T 5921-1986 Motor vehicles and towed vehicles—Air braking systems—Identification of connections on units

Publish Date: 1986-03-05

GB/T 5922-1986 Replaced

GB/T 5922-1986 Motor vehicles and towed vehicles—Pressure test connection for compressed-air pneumatic braking equipment

Publish Date: 1986-03-05

GB 7128-1986 Replaced

GB 7128-1986 Rubber hose for automotive air brake system

Publish Date: 1986-12-30

GB/T 11611-1989 abolished_transferred

GB/T 11611-1989 Motor vehicles—Hydraulic braking systems—Pipes tapped holes male fittings and hose end fittings

Publish Date: 1989-08-28