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GB/T 30649-2014 English PDF

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GB/T 30649-2014: Rubber articles for sound barriers
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Basic data

Standard ID GB/T 30649-2014 (GB/T30649-2014)
Description (Translated English) Rubber articles for sound barriers
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G47
Classification of International Standard 83.140.99
Word Count Estimation 10,134
Date of Issue 12/31/2014
Date of Implementation 7/1/2015
Quoted Standard GB/T 528; GB/T 529; GB/T 531.1; GB/T 2941; GB/T 3512; GB/T 3672.1-2002; GB/T 7759; GB/T 7758; GB/T 7762; GB/T 15256
Regulation (derived from) National Standards Bulletin 2014 No. 33
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This Standard specifies the requirements for sound barrier with rubber parts, test methods, inspection rules and signs, packaging, transportation and storage. This Standard applies to railways, highways, urban rail transit, urban road noise barrier with r

GB/T 30649-2014: Rubber articles for sound barriers

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Rubber articles for sound barriars ICS 83.140.99 G47 National Standards of People's Republic of China Sound barrier rubber parts Issued on. 2014-12-31 2015-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Rubber and rubber products, rubber sundries Standardization Technical Committee Technical Committee (SAC/TC35/SC7) Centralized. This standard was drafted. Jiangyin Haida Rubber and Plastic Co., Ltd., China Metals and Academy of Railway Sciences, Institute of Chemistry, Hengshui rubber Co., Ltd., Sichuan Academy of Railway Environmental Protection Technology Co., Ningbo An East New Materials Co., Ltd. The main drafters of this standard. Guhui Juan, Gong Jian, Mao Kunpeng, Liu Baoquan, Xuke Jun, Du Ruining. Sound barrier rubber parts

1 Scope

This standard specifies the requirements for sound barrier with rubber parts, test methods, inspection rules and signs, packaging, transportation and storage. This standard applies to railways, highways, urban rail transit, urban road noise barrier with rubber mats, rubber and other rubber (hereinafter referred to as rubber Plastic pieces).

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 528 Determination of vulcanized rubber or thermoplastic rubber tensile stress-strain properties GB/T 529 Determination of vulcanized rubber or thermoplastic rubber tear strength (Trouser, angle and crescent test pieces) GB/T 531.1 vulcanized rubber or thermoplastic rubber hardness test pushed Part 1. Shore hardness method (Shore hardness) GB/T 2941 rubber physical test method for preparing and conditioning General Procedure GB/T 3512 vulcanized rubber or thermoplastic rubber hot air and heat accelerated aging test GB/T 3672.1-2002 Rubber Products tolerance - Part 1. Dimensional tolerances GB/T 7758 vulcanized rubber low temperature performance measured temperature retraction procedure (TR) GB/T 7759 vulcanized rubber, thermoplastic rubber at room temperature, high and low temperature compression set determination GB/T 7762 vulcanized rubber or thermoplastic rubber resistant to ozone cracking static tensile test GB/T 15256 vulcanized rubber - Determination of low-temperature brittleness (multiple test piece method)

3 Requirements

3.1 appearance quality Crack-free surface, within each meter area of \u200b\u200bnot greater than the number of bubbles 10mm2 no more than three, no other impurities and affect the use of defect. 3.2 Size Commonly used cross-sectional schematic view of a rubber member as shown in Figure 1, Figure 2, Figure 3 and Figure 4. Rubber wall thickness dimensional tolerances shall comply with the requirements of Table 1, and other parts of the dimensional tolerances according to GB/T 3672.1-2002 in the E2 class Tolerance selection, special requirements by both parties through consultation. Figure 1 rubber

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