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GB/T 37977.41-2024 English PDF

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GB/T 37977.41-2024: Electrostatics - Part 4-1: Standard test methods for specific applications - Electrical resistance of floor coverings and installed floors
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GB/T 37977.41-2024English314 Add to Cart 4 days [Need to translate] Electrostatics - Part 4-1: Standard test methods for specific applications - Electrical resistance of floor coverings and installed floors Valid GB/T 37977.41-2024

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Basic data

Standard ID GB/T 37977.41-2024 (GB/T37977.41-2024)
Description (Translated English) Electrostatics - Part 4-1: Standard test methods for specific applications - Electrical resistance of floor coverings and installed floors
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard L04
Word Count Estimation 16,141
Date of Issue 2024-08-23
Date of Implementation 2024-08-23
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 37977.41-2024: Electrostatics - Part 4-1: Standard test methods for specific applications - Electrical resistance of floor coverings and installed floors


---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.
Electrostatics - Part 4-1.Standard test methods for specific applications - Electrical resistance of floor coverings and installed floors Electrostatics Part 4-1.Electrostatics for specific applications Standard test methods for floor coverings and assembled floors Resistance Electrostatics-Part 4-1.Standard test methods for specific applications-Electric﹘ al resistance of floor coverings and installed floors (IEC 61340-4-1.2015, IDT) ICS 17.220.20 CCS L 04 National Standard of the People's Republic of China Released on 2024-08-23 2025-03-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface ... Ⅲ Introduction Ⅳ 1 Scope ... 1 2 Normative references ... 1 3 Terms and Definitions ... 1 4 Principle ... 2 5 Instruments ... 2 5.1 Resistance measuring instruments ... 2 5.2 Measuring electrodes 2 5.3 Counter Electrode ... 4 5.4 Support plate ... 4 5.5 Insulation board ... 4 6 Sampling for laboratory evaluation ... 4 7 Preparation of test samples ... 4 8 Environmental conditions for handling and testing 5 9 Test steps ... 5 9.1 Cleaning of electrodes 5 9.2 Point-to-point resistance ... 5 9.3 Vertical resistance (for laboratory evaluation only) ... 5 9.4 Resistance to ground 6 10 Calculation and expression of measurement results 6 11 Test Report ... 6

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting is required. This document is part 4﹘1 of GB/T 37977 "Electrostatics". GB/T 37977 has published the following parts. Part 2﹘1.Test methods for electrostatic charge dissipation capability of materials and products; - Part 2﹘3.Test methods for resistance and resistivity of antistatic solid planar materials; Part 3﹘2.Simulation methods of electrostatic effects Electrostatic discharge test waveforms of machine models (MM); Part 4﹘1.Standard test methods for electrical resistance of floor coverings and assembled floors in specific applications; Part 4﹘3.Standard test methods for specific applications Footwear; - Part 4﹘5.Standard test methods for specific applications Methods for characterizing the electrostatic protection properties of human/shoe/ground systems; - Part 4﹘6.Standard test methods for specific applications Wrist straps; - Part 4﹘8.Standard test methods for specific applications Electrostatic discharge shielding bags; Part 4﹘9.Standard test methods for specific applications Clothing; - Part 5﹘1.General requirements for electrostatic protection of electronic components. This document is equivalent to IEC 61340﹘4﹘1.2015 "Electrostatics Part 4﹘1.Standard test methods for floor coverings in specific applications" Electrical resistance of covering and assembled floors. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the Ministry of Industry and Information Technology of the People's Republic of China. This document was drafted by. China Electronics Technology Standardization Institute, Zhejiang Yiyuan Electrostatic Technology Co., Ltd., Guangzhou CESI Standard Testing Research Institute Shenzhen CESI Information Technology Co., Ltd., Shenzhen Zhongming Technology Co., Ltd., Shanghai Chuangjing Testing Technology Co., Ltd. Shanghai Best Electronic Engineering Co., Ltd., Shanghai Maritime University, Beijing Oriental Metrology and Testing Institute, Suzhou Tianhua New Energy Technology Co., Ltd. Co., Ltd., BOE Technology Co., Ltd., National Industrial Information Security Development Research Center, China Academy of Space Technology Capital Security Division. The main drafters of this document are. Chen Meishuang, Wang Han, Xia Fan, Li Xuewen, Zhang Yiyuan, Zhao Huasheng, Han Lingling, Zhu Xuemei, Sun Keping, Cai Lihua, Zhi Weizhao, Wang Ruoyu, Sun Junjuan, Wang Ronggang, Chen Xiangyi, Sun Siyu, Zhou Gang, Liu Yingqian, Lu Liang, Qiao Changjun, Cao Rui.

Introduction

GB/T 37977 "Electrostatics" is the basic standard of electrostatics. It adopts the IEC 61340 series of standards and aims to define the model of electrostatic effects. Simulation method, anti-static parameter test method for anti-static materials and products, standard test method in specific applications, electrostatic protection of electronic devices Etc. GB/T 37977 is intended to consist of the following parts. Part 2﹘1.Test methods Materials and products Electrostatic charge dissipation capability. The purpose is to specify test methods for testing insulation and the electrostatic charge dissipation capabilities of static dissipative materials and products. Part 2﹘3.Test methods for resistance and resistivity of antistatic solid planar materials. The purpose is to specify test methods for measuring Test the resistance and resistivity of anti-static solid flat materials. The applicable range of the measured resistance is 104 Ω～1012 Ω. Part 3﹘2.Simulation methods for electrostatic effects Electrostatic discharge test waveforms for machine models (MM). The purpose is to specify Basic requirements for simulating electrostatic discharge current waveforms for MM and the equipment used to generate and verify these waveforms. Part 4﹘1.Standard test methods for electrical resistance of floor coverings and assembled floors in specific applications. Method for testing the resistance of floor coverings and assembled floors, including resistance to ground, point-to-point resistance and vertical resistance. The applicable resistance range is 104 Ω~1013 Ω. Part 4﹘3.Standard test methods for specific applications - Footwear. The purpose is to specify test methods for testing the performance of anti-static footwear. resistance. Part 4﹘4.Standard test methods for specific applications - Classification of flexible bulk containers (FIBC) for static electricity. Requirements for flexible bulk containers (FIBC) with a volume of 0.25 m3 to 3 m3 used in hazardous explosive atmospheres. Part 4﹘5.Standard test methods for specific applications Characterization of electrostatic protection properties of man/shoe/ground systems. Establish test methods to evaluate the anti-static performance of human/shoe/floor systems. Part 4﹘6.Standard test methods for specific applications Wrist straps. The purpose is to specify the electrical and mechanical performance requirements of wrist straps. and test methods for testing these properties. Part 4﹘8.Standard test methods for electrostatic discharge shielding bags in specific applications. The purpose is to provide a method for evaluating electrostatic discharge shielding bags. Performance test methods. Part 4﹘9.Standard test methods for specific applications - Clothing. The purpose is to specify test methods for testing antistatic clothing. resistance. Part 5﹘1.General requirements for electrostatic protection of electronic devices. The purpose is to establish anti-static management and technical requirements to avoid or reduce Low electronics damage due to electrostatic discharge. Part 5﹘4.Electrostatic protection of electronic devices Compliance verification. The purpose is to propose technical items involved in the electrostatic control program Compliance verification test methods. Part 6﹘1.General requirements for electrostatic control facilities in medical facilities. The purpose is to specify the equipment, Material and product requirements. This document describes a test method for evaluating the electrical resistance of floor coverings and assembled floors in the 104 Ω to 1013 Ω resistance range, including It includes ground resistance, point-to-point resistance and vertical resistance. Electrostatics Part 4-1.Electrostatics for specific applications Standard test method for electrical resistance of floor coverings and assembled floors

1 Scope

This document, as part of the standard test methods for specific applications in the GB/T 37977 series, specifies the test methods for the 104 Ω~1013 Ω resistance range. Test methods for determining the electrical resistance of various floor coverings and assembled floors, including test methods for resistance to earth, point-to-point resistance and vertical resistance Laboratory evaluation tests conducted under specified environmental conditions can be used for classification or quality management. Tests performed on the board can be used to assess whether an installation is qualified or as part of verification testing of the system in use. NOTE. Although this document does not include requirements for personal safety, the floor coverings covered by the specified test methods are subject to local Laws and regulations related to personal health and safety.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies. in this document. ISO 1957 Machine-made textile floor cover — Selection and cutting of test specimens for physical testing ings-Selection and cutting of specimens for physical tests)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Acceptance testing A test carried out immediately after the floor is installed, or a conformity test carried out by the customer on production samples prior to initial acceptance. 3.2 Geometric mean py1·y2...the nth root of the product of ynn numbers. 3.3 groundable point A point on a floor covering that is convenient for grounding the floor covering. 3.4 Insulating material Materials with vertical resistance greater than 1014 Ω. 3.5 Laboratory evaluations Measurements performed under controlled laboratory conditions. 3.6 resistance to ground The resistance measured between ground or a groundable point and a single electrode placed on the surface of use.

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