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GB/T 34938-2017: General technical requirements for planar electromagnetic shielding materials
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| GB/T 34938-2017 | English | 279 |
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General technical requirements for planar electromagnetic shielding materials
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GB/T 34938-2017
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Basic data | Standard ID | GB/T 34938-2017 (GB/T34938-2017) | | Description (Translated English) | General technical requirements for planar electromagnetic shielding materials | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K04 | | Classification of International Standard | 33.100 | | Word Count Estimation | 14,176 | | Date of Issue | 2017-11-01 | | Date of Implementation | 2018-05-01 | | 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 | GB/T 34938-2017: General technical requirements for planar electromagnetic shielding materials---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.
General technical requirements for planar electromagnetic shielding materials
ICS 33.100
K04
National Standards of People's Republic of China
General technical requirements for planar electromagnetic shielding materials
Posted.2017-11-01
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Categories 1
5 Requirements 1
5.1 appearance requirements
5.2 Technical Requirements 2
5.2.1 Industrial electromagnetic shielding fabric 2
5.2.2 conductive pad 2
5.2.3 Electromagnetic shielding rubber 2
5.2.4 Electromagnetic shielding plastic 2
5.2.5 Electromagnetic shielding transparent plate 2
5.2.6 cut off the waveguide ventilation board 3
5.2.7 Electromagnetic shielding film 3
5.2.8 Electromagnetic shielding metal plate (net) 3
5.2.9 Planar Intrinsic Conductive Polymer Material 3
5.2.10 Absorption plate 3
6 test method 3
6.1 Industrial electromagnetic shielding fabric 3
6.1.1 Shielding effectiveness test 3
6.1.2 Surface resistance test 3
6.1.3 metal layer bonding test 3
6.1.4 breaking strength test 4
6.2 conductive pads 4
6.2.1 Shielding effectiveness test 4
6.2.2 Contact Resistivity Test 4
6.2.3 Residual deformation test 4
6.3 electromagnetic shielding rubber 4
6.3.1 Shielding effectiveness test 4
6.3.2 Shore hardness test 4
6.3.3 Tensile strength test 4
6.4 Electromagnetic shielding plastic 4
6.5 Electromagnetic shielding transparent plate 4
6.5.1 Shielding effectiveness test 4
6.5.2 Visible light transmittance test 4
6.5.3 visible light reflectance test 4
6.6 Cut off the waveguide ventilation plate 5
6.7 Electromagnetic shielding film 5
6.7.1 Shielding effectiveness test 5
6.7.2 Heat Shrinkage Test 5
6.7.3 Light transmittance test 5
6.7.4 peel strength test 5
6.8 Electromagnetic shielding metal plate (net) 5
6.9 Planar Intrinsically Conductive Polymer Material 5
6.10 absorbers 5
7 logo, packaging, transportation, storage 5
7.1 mark 5
7.2 Packaging 5
7.3 Transportation 6
7.4 Storage 6
Appendix A (Normative) Conductive gasket residual deformation test method 7
Reference 9
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard proposed by the China Electrical Equipment Industry Association.
This standard by the National Electromagnetic shielding materials Standardization Technical Committee (SAC/TC323) centralized.
This standard was drafted unit. Shanghai Institute of Measurement and Testing Technology, Zhejiang Sanyuan Electronic Technology Co., Ltd., Changzhou Polis Fiber Limited
Company, North Engineering Design and Research Institute, Connaught Optoelectronics Materials Co., Ltd., Shanghai Tim Hong Industrial Co., Ltd., Shenzhen Rongrong Technology
Co., Ltd., Hangzhou Qiantang Special Glass Technology Co., Ltd., Qingdao Hengtong Wai Yip Special Textile Technology Co., Ltd., 3M China Limited
Company, Shanghai Jiao Tong University, Hunan Hui Tong New Materials Co., Ltd., China Institute of Metrology, Shanghai Leon High-tech Co., Ltd., Guangzhou
Huai Thai Garment Co., Ltd., Shanghai Silver Shield Textile Technology Co., Ltd., Happy House (Zhengzhou) Co., Ltd, Shanghai Pui magnetic textile technology have
Co., Ltd., Shanghai Top 100 Long Hill Development Co., Ltd., Hefei love home Radiation Technology Co., Ltd., Guangzhou City Jun Shang Clothing Co., Ltd
Division, Jinding Joint Technology Fiber Co., Ltd.
The main drafters of this standard. Cai Qing, Lu Fu Min, Shao Li, Wang Wei, Lai Lei, Luo Jianping, Chen Chao Chan, Sang Yu, Zhao Tianliang, Zhu Yan Yan, Xu Tao Fang,
Zhang Quanhong, Huang Yufan, Ping Bai war, Bu Qingge, Lei Zhigang, Liu Weide, Xu Shiqing, Liu Manhua, Xiang Hongyan, Tian Liang, Wang Zhihao, Xia Haiping, Ke Wei,
Liang Changrui, Jiang Yijun, Pang Ji-Zhang.
General technical requirements for planar electromagnetic shielding materials
1 Scope
This standard specifies the terms and settings of the plane electromagnetic shielding material (hereinafter referred to as shielding material) frequency range 0Hz ~ 300GHz
Meaning, classification, requirements, test methods, marking, packaging, transportation and storage.
This standard applies to planar electromagnetic shielding materials.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 191 Packaging - Pictorial signs
Rubber, vulcanized or thermoplastic - Determination of tensile stress - strain properties GB/T
GB/T 531.1-2008 vulcanized rubber or thermoplastic rubber test methods into the hardness - Part 1. Shore Hardness Tester (Shao
Hardness
Transparent plastics - Determination of light transmittance and haze GB/T 2410-2008
Standard Test Method for Peel Strength of Adhesive Tapes GB/T 2792-2014
Test methods for automotive safety glass - Part 2. Optical properties test
Films for electrical insulation - Part 2. Test methods
Electromagnetic shielding materials terminology GB/T 26667-2011
General technical requirements for electromagnetic shielding fabrics for industry GB/T 30139-2013
Measurement method of shielding effectiveness of planar electromagnetic shielding materials GB/T 30142-2013
GJB2038A-2011 Radar Absorbing Material Reflectance Test Method
ASTMB117 salt spray injector operating procedures [StandardPracticeforOperatingSaltSpray (Fog) Apparatus]
MIL-STD-202G Electronic and Electrical Component Test Methods (TestMethodStandardElectronicandElectrical
ComponentParts)
3 Terms and definitions
GB/T 26667-2011 defined terms and definitions apply to this document.
4 categories
Shielding materials in accordance with the structure and use is divided into industrial electromagnetic shielding fabrics, conductive pads, electromagnetic shielding rubber, electromagnetic shielding plastic, electromagnetic
Shielding Transparent Sheet, Cutoff Ventilation Plate, Electromagnetic Shielding Film, Electromagnetic Shielding Metal Sheet (Net), Flat Intrinsically Conductive Polymer Material, Suction
Wave plate.
5 requirements
5.1 appearance requirements
Product appearance surface should be smooth, uniform color distribution, no bubbles, cracks, holes, deformation, corrosion, obvious impurities, processing damage
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