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GBZ6113.405-2026: Specification for radio disturbance and immunity measuring apparatus and methods - Part 4-5: Uncertainties, statistics and limit modelling - Conditions for the use of alternative test methods
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Specification for radio disturbance and immunity measuring apparatus and methods - Part 4-5: Uncertainties, statistics and limit modelling - Conditions for the use of alternative test methods
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| GB/Z 6113.405-2010 | English | 814 |
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Specification for radio disturbance and immunity measuring apparatus and methods -- Part 4-5: Uncertainties, statistics and limit modelling -- Conditions for the use of alternative test methods
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Basic data | Standard ID | GB/Z 6113.405-2026 (GB/Z6113.405-2026) | | Description (Translated English) | Specification for radio disturbance and immunity measuring apparatus and methods - Part 4-5: Uncertainties, statistics and limit modelling - Conditions for the use of alternative test methods | | Sector / Industry | National Standard | | Classification of Chinese Standard | L06 | | Classification of International Standard | 33.100 | | Word Count Estimation | 74,786 | | Date of Issue | 2026-01-04 | | Date of Implementation | 2026-01-04 | | Older Standard (superseded by this standard) | GB/Z 6113.405-2010 | | Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China | GBZ6113.405-2026: Specification for radio disturbance and immunity measuring apparatus and methods - Part 4-5: Uncertainties, statistics and limit modelling - Conditions for the use of alternative test methods
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GB /Z 6113.405-2026.Specification for Radio Interference and Immunity Measurement Equipment and Methods - Part 4-5.Uncertainty, Statistics and Limit Modeling - Conditions for Use of Alternative Test Methods
ICS 33.100
CCSL06
National Standardization Guiding Technical Documents of the People's Republic of China
Replaces GB /Z 6113.405-2010
Radio interference and immunity measurement equipment
and measurement method specifications
Parts 4-5.Uncertainty, Statistics, and Limit Modeling
Conditions for using alternative test methods
(CISPRTR16-4-5.2021,IDT)
Published on 2026-01-04
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
Introduction V
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.Symbols and Abbreviations 3
5 Overview 3
6.Procedures for deriving limits for alternative test methods 4
7.Procedure for deriving replacement test method limits based on measurement results 11
8.Derivation of Limits for Radiated Emission Measurement Using a Reverberation Chamber as an ATM Based on Statistical Analysis of All Basic Factors 13
Appendix A (Informative) Explanation of EUT Modeling 15
Appendix B (Informative) Example of Application of Comparison Procedure for Test Methods 16
Appendix C (Informative) Example 44 of Comparative Procedures for Applying Test Methods Based on Measurement Results
Appendix D (Informative) Statistical Methods for Converting Interference Limits of Radiated Disturbance Test Methods to RC Test Method Limits 50
References 65
Foreword
This document is a report-type guidance technical document.
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
GB/T (Z)6113, "Specification for Radio Interference and Immunity Measurement Equipment and Methods", is a fundamental standard for electromagnetic compatibility.
This document is Part 4-5 of GB/T (Z)6113.The following parts of GB/T (Z)6113 have been published.
Part 1.Radio Interference and Immunity Measurement Equipment
---Part 1-1.Radio Interference and Immunity Measurement Equipment;
---Part 1-2.Coupling devices for conducted interference measurements of radio disturbance and immunity measurement equipment;
---Parts 1-3.Radio Interference and Immunity Measurement Equipment and Auxiliary Equipment Interference Power;
---Parts 1-4.Radio Interference and Immunity Measurement Equipment, Antennas for Radiated Interference Measurement, and Test Sites;
---Parts 1-5.Radio Interference and Immunity Measurement Equipment, 5MHz~18GHz Antenna Calibration Site and Reference Test
site;
---Parts 1-6.EMC antenna calibration for radio disturbance and immunity measurement equipment.
Part 2.Methods for Measuring Radio Interference and Immunity
---Part 2-1.Radio Interference and Immunity Measurement Methods - Conducted Interference Measurement;
---Part 2-2.Radio Interference and Immunity Measurement Methods - Interference Power Measurement;
---Parts 2-3.Methods for Measuring Radio Interference and Immunity; Radiated Interference Measurement;
---Parts 2-4.Radio Interference and Immunity Measurement Methods; Immunity Measurement;
---Parts 2-5.On-site measurements of large equipment disturbance launches.
Part 3.Technical Report on Radio Interference and Immunity Measurement
---Part 3.Technical Report on Radio Interference and Immunity Measurement
Part 4.Uncertainty, Statistics, and Limit Modeling
---Part 4-1.Uncertainty, Statistics and Limit Modeling - Uncertainty in Standardized EMC Tests;
---Part 4-2.Uncertainty, Statistics and Limit Modeling. Uncertainty of Measurement Equipment and Facilities;
---Part 4-3.Uncertainty, Statistics, and Limit Modeling. Statistical Considerations for Determining EMC Compliance of Batch Products;
---Part 4-4.Uncertainty, Statistics, and Limit Modeling; Statistical Analysis of Complaints and Limit Calculation Models for Protecting Radio Services;
---Parts 4-5.Uncertainty, Statistics and Limits Modeling. Conditions for Using Alternative Experimental Methods
This document replaces GB /Z 6113.405-2010 "Specifications for Radio Interference and Immunity Measurement Equipment and Methods - Parts 4-5".
"Conditions for the Use of Uncertainty, Statistics and Limit Modeling to Replace Experimental Methods", compared with GB /Z 6113.405-2010, except for structural adjustments
Aside from editorial changes, the main technical changes are as follows.
---Added the terms and definitions for "standard compliance uncertainty" and "test device space" (see 3.10 and 3.11);
---Added some abbreviations and symbols (see Chapter 4);
---Table 2 has been revised (see Table 2, the.2010 version);
---Added a procedure for deriving replacement test method limits based on measurement results (see Chapter 7);
---Added "Based on statistical analysis of all fundamental factors, the limit for using a reverberation chamber as an ATM for radiated disturbance measurements is derived."
(See Chapter 8).
This document is equivalent to CISPRTR 16-4-5.2021, "Specifications for apparatus and methods of measuring radio disturbances and immunity," Sections 4-5.
Part. Uncertainty, Statistics and Limits Modeling. Conditions for Using Alternative Experimental Methods.
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed and is under the jurisdiction of the National Technical Committee on Radio Interference Standardization (SAC/TC79).
This document was drafted by. China Electronics Technology Standardization Institute, Ningbo Customs Technology Center, and Guangdong Product Quality Supervision and Inspection Institute.
Xiamen Hainoda Scientific Instruments Co., Ltd., China National Institute of Metrology, China Automotive Engineering Research Institute Co., Ltd., Jiangsu Provincial Electronics
Information Product Quality Supervision and Inspection Institute (Jiangsu Provincial Information Security Evaluation Center), China Electric Power Research Institute Co., Ltd., and the Ministry of Industry and Information Technology
The Fifth Research Institute of Electronics, Ministry of Chemical Industry; Guangzhou Chengzhen Electronics Technology Co., Ltd.; Beijing Jiaotong University; Beijing Kehuan Century Electromagnetic Compatibility Technology Co., Ltd.
Limited Liability Company, China Household Electric Appliance Research Institute (Beijing) Testing and Certification Co., Ltd., China Coal Science and Technology Research Institute Co., Ltd., Hefei Product Quality Supervision and Inspection Institute
Research Institute, Aerospace Science and Technology Quality Measurement (Xi'an) Technology Co., Ltd., Beijing Tonghe Shiyi Telecommunications Science and Technology Research Institute Co., Ltd., State Grid Electric Power Research Institute
Institute Co., Ltd., Ningbo Municipal Institute of Product and Food Quality Inspection (Ningbo Fiber Inspection Institute), China Household Electric Appliance Research Institute, Jiangsu Provincial Institute of Metrology
Scientific Research Institute (Jiangsu Provincial Energy Measurement and Data Center), Beiqi Foton Motor Co., Ltd., Fujian Provincial Institute of Product Quality Inspection, Hebei
Southern Province Electronic Information Product Quality Inspection and Technology Research Institute, Huai'an Wensheng Electronics Co., Ltd., Zhejiang Longchuang Testing Technology Co., Ltd., Yangzhou
Haike Electronics Technology Co., Ltd.
The main drafters of this document are. Chen Zhengyu, Yue Mulin, Zhong Yuansheng, Cui Qiang, He Peng, Huang Pan, Fu Jun, Huang Xuemei, Lü Ling, Shi Guangming, and Wang Jiaying.
Chu Rui, Li Nan, Xiao Jianjun, Liang Jiming, Ba Xin, Qi Xin, Zhang Ziliang, Yang Xinchun, Li Haiyang, Yuan Hao, Ju Wenjing, Wu Yunchenming, Li Xiaojuan, Deng Lingxiang
Wang Zetang, Chen Shidong, Zhao Luxing, Feng Xinghui, Sun Chengyu, Liu Pingshun, Ni Dahai, Zhang Ying, Jiao Can, Wang Fang, Zhou Mingda, Miao Xinglong.
The release history of this document and the document it replaces is as follows.
---First published in.2010 as GB /Z 6113.405-2010;
---This is the first revision.
Introduction
To standardize electromagnetic compatibility (EMC) measurements, consider measurement uncertainties, provide relevant background information, and classify EMC products...
The formulation and revision of standards laid the technical foundation. GB/T (Z)6113 "Specification for Measurement Equipment and Methods for Radio Interference and Immunity" stipulates the requirements for radio interference and immunity measurement.
The model for measuring electrical disturbance and immunity, including measurement equipment, methods, technical requirements for measurement uncertainty, and calculation limits, consists of four parts, the first of which is...
Part 1 is the specification for radio interference and immunity measurement equipment; Part 2 is the specification for radio interference and immunity measurement methods; Part 3 is...
Technical report on radio interference and immunity measurement; Part 4 covers uncertainty, statistics, and limit modeling.
Part 4 is proposed to be divided into 5 parts.
---Part 4-1.Uncertainty, Statistics, and Limit Modeling Uncertainty in standardized EMC tests. The purpose is to provide electromagnetic...
The developers and revisers of compatible standards provide guidance on handling uncertainty.
---Part 4-2.Uncertainty, Statistics, and Limit Modeling. Uncertainty of measurement equipment and facilities. The purpose is to specify the basis...
How is the measurement uncertainty (MIU) applied when determining compliance with CISPR disturbance limits for equipment under test?
The method.
---Part 4-3.Uncertainty, Statistics, and Limit Modeling - Statistical Considerations for Determining EMC Compliance of Batch Products. Objective
It describes the statistical considerations for determining the electromagnetic compatibility (EMC) compliance of batch products.
---Part 4-4.Uncertainty, Statistics and Limit Modeling. Statistics of Complaints and Limit Calculation Models for Radio Services.
The purpose is to provide suggestions on how to handle radio interference complaint statistics and to provide measurement methods for interference field strength and interference voltage at test sites.
Calculation of limits for measurement.
---Parts 4-5.Uncertainty, Statistics, and Limit Modeling - Conditions for Using Replacement Experimental Methods. The aim is to provide product committees with...
When using alternative test methods, it provides conversion methods between the established test method limits and the specified test method limits.
Radio interference and immunity measurement equipment
and measurement method specifications
Parts 4-5.Uncertainty, Statistics, and Limit Modeling
Conditions for using alternative test methods
1 Scope
This document specifies the conversion method between two limits for the Product Committee, namely, the "determined limit" in the "determined test method".
Convert to "Derived Limits" in "Alternative Test Methods". This method is generally applicable to all types of disturbance measurements, but focuses more on radiated disturbances.
Disturbance measurements (i.e., field strength and total radiated power) are used because several alternative test methods for field strength measurements have been established. The Product Committee and responsible...
When other organizations that set emission limits decide to use alternative test methods and corresponding limits in product standards, this method can be used to achieve the limits.
The conversion.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 4365-2024 Electromagnetic compatibility (IEC 60050-161.2021, MOD)
Note. There are no technical differences between the content referenced in GB/T 4365-2024 and the content referenced in IEC 60050-161.1990.
3 Terms and Definitions
The terms and definitions defined in GB/T 4365-2024, as well as the following terms and definitions, apply to this document.
3.1
The test methods for determining emission limits are described in the basic standards and specified in the product or general standards. It includes specific...
The test procedures, specific test setup, specific test facilities or test sites, and defined launch limits.
Note. The following test methods are considered definitive test methods by CISPR.
---CISPR 16-2-1 specifies the method for measuring conducted interference at power ports in the 9kHz~30MHz range using an artificial power network (AMN);
---CISPR 16-2-3 specifies a range of 30MHz to 1GHz, a measurement distance of 10m, and the use of an Open Test Site (OATS) or a Semi-Anechoic Chamber (SAC).
Radiated disturbance measurement methods;
---Radiated disturbances specified in CISPR 16-2-3, ranging from 1 GHz to 18 GHz, measured at a distance of 3 m, using an open test site in free space (FSOATS).
Disturbance measurement methods.
3.2
Test methods described in the basic standards but without defined emission limits. Alternative test methods are developed based on the established test methods.
The same purpose. Alternative test methods include specific test procedures, specific test setups, specific test facilities or sites, and applications.
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