GB/T 9766.2-2024: Test method for tyre valves - Part 2: Rubber base valves test method

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Scope

This document specifies the test equipment, instruments and apparatuses, appearance
inspection, the measurement of throat diameter, taper seat position, and conical hole angle of
No. 1, No. 3, No. 4 and No. 5C core chambers, the measurement of pitch diameter and major
diameter of external threads, pitch diameter, minor diameter and depth of internal threads,
sealing test, adhesion strength test between rubber and metal, determination of glue adhesion
rate, and the measurement of edge thickness of rubber seat of rubber base valves (hereinafter
referred to as the valves).
This document is applicable to the test of tube valves for trucks, industrial vehicles, agricultural
vehicles, engineering machinery, motorcycles, electric bicycles and cycles, etc. This document
does not apply to the test of aircraft tyre valves.

Basic Data

Standard ID	GB/T 9766.2-2024 (GB/T9766.2-2024)
Description (Translated English)	Test method for tyre valves - Part 2: Rubber base valves test method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G41
Classification of International Standard	83.160.01
Word Count Estimation	14,199
Date of Issue	2024-09-29
Date of Implementation	2025-04-01
Older Standard (superseded by this standard)	GB/T 9766.2-2016
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration