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GB/T 9766.1-2015 PDF English

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GB/T 9766.1-2015: Test method for tyre valves -- Part 1: Test method for tube clamp-in valves
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GB/T 9766.1: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] deliveryName of Chinese StandardStatus
GB/T 9766.1-2015English100 Add to Cart 0-9 seconds. Auto-delivery Test method for tyre valves -- Part 1: Test method for tube clamp-in valves Valid
GB/T 9766.1-2008English239 Add to Cart 3 days Test method for tyre valve -- Part 1: Test method for clamp-in valves Obsolete
GB/T 9766-2002English359 Add to Cart 3 days Test method for tyre valve Obsolete
GB/T 9766-1994English319 Add to Cart 3 days Test method for tyre valve Obsolete
GB 9766-1988English199 Add to Cart 2 days Test method for tyre valve Obsolete

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GB/T 9766.1-2015: Test method for tyre valves -- Part 1: Test method for tube clamp-in valves

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT9766.1-2015
GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 83.160.01 G 41 Replacing GB/T 9766.1-2008 Test Method for Tyre Valves - Part 1: Test Method for Tube Clamp-in Valves ISSUED ON: DECEMBER 31, 2015 IMPLEMENTED ON: NOVEMBER 1, 2016 Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China; Standardization Administration of the People’s Republic of China.

Table of Contents

Foreword ... 3 1 Scope ... 5 2 Normative References ... 5 3 Terms and Definitions ... 5 4 Test Equipment, Instruments and Apparatuses ... 5 5 Test Procedures ... 6

Foreword

GB/T 9766 Test Method for Tyre Valves is divided into seven parts: ---Part 1: Test Method for Tube Clamp-in Valves; ---Part 2: Rubber Base Valves Test Methods; ---Part 3: Test Methods for Snap-in Valves; ---Part 4: Test Methods for Tubeless Clamp-in Valves; ---Part 5: Test Methods for Large Core Chamber Tyre Valves; ---Part 6: Test Method for Core; ---Part 7: Test Methods for Components. This is Part 1 of GB/T 9766. This Part was drafted in accordance with the rules provided in GB/T 1.1-2009. This Part serves as a replacement of GB/T 9766.1-2008 Test Method for Tyre Valves - Part 1: Test Method for Clamp-in Valves. In comparison with GB/T 9766.1-2008, the main technical changes are as follows: ---The accuracy grade of the pressure gauge is modified; the grade of the pressure gauge with an indicating value of 0 kPa ~ 2,500 kPa is modified from the previous Grade 1.5 into Grade 1.6 (see Chapter 4; Chapter 4 of Version 2008); ---The assembly torque of Type H01 valve core is modified from “0.17 N  m ~ 0.34 N  m” into “0.23 N  m ~ 0.34 N  m” (see 5.1; 5.1.1 of Version 2008); ---“use a torque of 0.15 N  m ~ 0.20 N  m to lock the valve core…” is modified into “use a torque of 0.17 N  m ~ 0.20 N  m to lock the valve core…” (see 5.1; 5.1.1 of Version 2008); ---The sealing performance test of the sealing cap is deleted (see 5.1.2 of Version 2008); ---The “assembly torque of the hexagonal nut and the valve body” is modified into “assembly test of the valve body” (see 5.2; 5.2 of Version 2008). This Part was proposed by China Petroleum and Chemical Industry Federation. This Part shall be under the jurisdiction of National Technical Committee 19 on Tyres and Rims of Standardization Administration of China (SAC/TC 19). The main drafting organization of this Part: Ningbo Yinzhou Chengyu Hardware Factory. Test Method for Tyre Valves - Part 1: Test Method for Tube Clamp-in Valves

1 Scope

This Part of GB/T 9766 specifies the terms and definitions, test equipment, instruments and apparatuses, and test procedures of the test of tube clamp-in valves (hereinafter referred to as “valves”). This Part is applicable to the valve test of inner tubes of motorcycles and rickshaws, etc.

2 Normative References

The following documents are indispensable to the application of this document. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 1796.1 Tyre Valves - Part 1: Clamp-in Valves GB 1796.6 Tyre Valves - Part 6: Cores GB 1796.7 Tyre Valves - Part 7: Components GB/T 12839 Terms and Definitions of Tyre Valves

3 Terms and Definitions

The terms and definitions defined in GB/T 12839 are applicable to this document.

4 Test Equipment, Instruments and Apparatuses

4.1 Special-purpose torque wrench: with an accuracy grade of 5%. 4.2 Pressure gauge: with an indicating value of 0 kPa ~ 2,500 kPa and an accuracy grade of Grade 1.6. 4.3 Stopwatch. 4.4 The valve sealing performance test device is shown in Figure 1. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

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