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GB/T 15173-2026: Electroacoustics - Sound calibrators
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
GB/T 15173-2026	English	854	Add to Cart	6 days [Need to translate]	Electroacoustics - Sound calibrators
GB/T 15173-2010	English	1290	Add to Cart	0--9 seconds. Auto-delivery	Electroacoustics - Sound calibrators
GB/T 15173-1994	English	279	Add to Cart	3 days [Need to translate]	Sound calibrators

GB/T 15173-2026: Electroacoustics - Sound calibrators

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ICS 17.140.50 CCSA59 National Standards of the People's Republic of China Replaces GB/T 15173-2010 Electroacoustic calibrator (IEC 60942.2017, IDT) Published on 2026-02-27 Implemented on 2026-09-01 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Table of contents

Preface V Introduction VI 1.Scope 1 2 Normative References 1 3.Terms and Definitions 2 4.Reference Environmental Conditions 5 Technical Requirements 4 5.1 General Rules 4 5.2 Adapter 6 5.3 Sound Pressure Level 6 5.3.1 General Rules 6 5.3.2 Resulting sound pressure level 6 5.3.3 Short-term fluctuations 6 5.3.4 The Influence of Power Supply Voltage on Sound Pressure Level 7 5.4 Frequency 7 5.4.1 General Requirements 7 5.4.2 Frequency of the acoustic signal generated by the acoustic calibrator 7 5.5 Effects of Static Pressure, Air Temperature and Humidity 8 5.6 Total Distortion Plus Noise 9 5.7 Power Requirements 9 5.8 Microphone Specifications and Calibration 9 5.8.1 Microphone Model and Adapter 9 5.8.2 Microphone Sensitivity Level 9 5.9 Electromagnetic compatibility 10 5.9.1 General Requirements 10 5.9.2 Radio Frequency Transmission 10 5.9.3 Electrostatic Discharge 10 5.9.4 Immunity to power frequency and radio frequency fields 10 6.Signs and Documents 11 6.1 Markings of the sound calibrator 11 6.2 Individual Calibration Chart 11 for LS-Level Acoustic Calibrator 6.3 Instruction Manual 11 Appendix A (Normative) Type Evaluation Test 13 A.1 General Rule 13 A.2 Test Submission 13 A.3 Main value 13 A.4 Accompanying Documents and Markings of the Sound Calibrator 13 A.5 Performance test under reference environmental conditions and in the vicinity 13 A.5.1 General Requirements 13 A.5.2 Orientation 14 A.5.3 Environmental Noise 14 A.5.4 Microphone Specification 14 A.5.5 SPL 14 A.5.6 Sound Pressure Level Stability - Short-Term Fluctuations 15 A.5.7 Frequency 15 A.5.8 Total Distortion Plus Noise 16 A.6 Environmental Testing 17 A.6.1 General Requirements 17 A.6.2 Effect of Static Pressure 17 A.6.3 Environmental Adaptation Requirements for Tests Due to Changes in Air Temperature and Relative Humidity 18 A.6.4 Simplified Experiment on the Combined Effects of Air Temperature and Humidity 18 A.6.5 The Influence of Air Temperature 20 A.6.6 The Influence of Relative Humidity 21 A.6.7 The Influence of the Combination of Air Temperature and Humidity 21 A.7 Electromagnetic Compatibility 22 A.7.1 General Requirements 22 A.7.2 Radio Frequency Transmission 22 A.7.3 Electrostatic Discharge 23 A.7.4 Power frequency and radio frequency field immunity 23 Appendix B (Normative) Periodic Test 25 B.1 General Rule 25 B.2 Test submission 25 B.3 Preliminary inspection 25 B.4 Performance Test 25 B.4.1 Orientation 25 B.4.2 Environmental Noise 26 B.4.3 Environmental Conditions 26 B.4.4 Auxiliary Equipment 26 B.4.5 Microphone Specification 26 B.4.6 SPL 26 B.4.7 Frequency 27 B.4.8 Total Distortion Plus Noise 27 B.5 Calibrate the sound calibrator using other microphone models 28 B.6 Document 28 Appendix C (Normative) Type Evaluation Report 30 C.1 General Rule 30 C.2 Mark 30 C.3 Test submission 30 C.4 Contents of the Type Evaluation Report 30 Appendix D (Informative) Relationship between tolerance intervals, corresponding acceptance intervals, and maximum permissible measurement uncertainty 31 Appendix E (Informative) Example 32 of the evaluation of compliance with the requirements of this document E.1 Overview 32 E.2 Meets Criterion 32 E.3 Example 32 of Test Results References 34 Figure D.1 Relationship between tolerance interval, corresponding acceptance interval, and maximum permissible measurement uncertainty 31 Figure E.1 Example 33 of conformity assessment Table 1.Levels and Identification of Sound Calibrators 5 Table 2 Acceptable limits for sound pressure level and short-term level fluctuations under reference environmental conditions and in their vicinity 6 Table 3 Acceptable Limits for the Effect of Power Supply Voltage on Sound Pressure Level under Reference Environmental Conditions 7 Table 4.Acceptable Frequency Limits in and around Reference Environmental Conditions 7 Table 5 specifies the acceptable limits for sound pressure levels within the specified environmental conditions. Table 6.Acceptable Frequency Limits within the Specified Environmental Conditions (8) Table 7 Maximum Total Distortion Plus Noise 9 Table A.1 Maximum permissible measurement uncertainty of sound pressure level and short-term level fluctuations under reference environmental conditions and in their vicinity (including (Probability 95%) 15 Table A.2 Maximum permissible measurement uncertainty of frequency in and around reference environmental conditions (coverage probability 95%) 16 Table A.3 Maximum permissible measurement uncertainty of total distortion plus noise within the applicable environmental conditions (coverage probability 95%) 17 Table A.4 specifies the maximum permissible measurement uncertainty (coverage probability 95%) of sound pressure level within the specified environmental conditions. Table A.5 specifies the maximum permissible measurement uncertainty (coverage probability 95%) for frequencies within the specified environmental conditions. Table E.1 Example 32 of Conformity Assessment

Foreword

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. This document supersedes GB/T 15173-2010 "Electroacoustic Acoustic Calibrators". Compared with GB/T 15173-2010, except for structural adjustments and... Aside from editorial changes, the main technical changes are as follows. a) Added terms and definitions for "piston-generated sounder," "total distortion plus noise," "inclusion probability," and "acceptance limit" (see Chapter 3); b) The term "total distortion" has been removed (see Chapter 3 of the.2010 edition); c) The LS/C, 1/C, and 2/C level identifiers have been removed (see section 5.1.4 of the.2010 version); d) Two new level identifiers, LS/M and 1/M, have been added (see 5.1.5); e) Increased the time requirements for maintaining stable sound pressure level and frequency (see 5.1.10); f) The criteria for compliance with requirements have been changed (see 5.1.15, 5.1.12 in the.2010 version); g) Added requirements for adapter information (see 5.2); h) A test method for radio frequency field immunity using transverse electromagnetic waveguides has been added (see 5.9.4.4 and A.7.4.1); i) The experimental methodology for short-term fluctuations has been modified (see 5.3.3 and A.5.6, 5.2.3 and A.4.4 in the.2010 edition); j) The requirements for environmental noise have been changed (see A.5.3 and B.4.2, A.4.3.6 and B.3.4.2 in the.2010 edition); k) The combination of air temperature and relative humidity conditions in the environmental impact test has been changed (see A.6.4.1 and A.6.7.1,.2010 edition). A.5.4.1 and A.5.7.1); l) The format requirements for type evaluation reports have been removed (see C.3 in the.2010 edition). This document is equivalent to IEC 60942.2017 "Electroacoustic calibrators". 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 by the Ministry of Industry and Information Technology of the People's Republic of China. This document is under the jurisdiction of the National Electroacoustics Standardization Technical Committee (SAC/TC23). This document was drafted by. National Institute of Metrology, Hunan Sound Instrument Measurement and Control Technology Co., Ltd., and China Electronics Technology Group Corporation. The Third Research Institute, Shenzhen Tiansu Measurement and Testing Co., Ltd., Hangzhou Aihua Instrument Co., Ltd., Nanjing University, and the Institute of Acoustics, Chinese Academy of Sciences Institute, Jiangxi Lianchuang Electroacoustic Co., Ltd., Beijing 797 Audio Co., Ltd., Nanhua University, Jiangsu Provincial Electronic Information Product Quality Supervision Bureau Inspection and Testing Institute (Jiangsu Provincial Information Security Evaluation Center), Hangzhou Zhaohua Electronics Co., Ltd. The main drafters of this document are. Niu Feng, Liu Xiangheng, He Longbiao, Tan Xiaoming, Cui Jian, Zhang Guoqing, Wu Xin, Luo Gaofeng, Shen Yong, Li Xiaodong, and Xiao Xueyang. Song Ming, Zheng Hong, Wang Yulin, Chen Jiasheng, Zhang Dong, Liu Zhiying, Huang Chengdong, Zhou Chan. The release history of this document and the document it replaces is as follows. ---First published in.1994 as GB/T 15173-1994, and revised for the first time in.2010; ---This is the second revision.

Introduction

A sound calibrator is a device that, when coupled to a microphone of a specified type and structure (with or without a protective grille), can provide sound for one or more specified... A device that generates one or more known sound pressure levels at a frequency. Some sound calibrators generate sound pressure levels that are related to static pressure. The acoustic calibrator has two main uses. a) Determine the sound pressure sensitivity of the specified microphone model in the specified configuration; b) Check or adjust the overall sensitivity of the acoustic measuring instrument or system. Electroacoustic calibrator

1 Scope

This document specifies the performance requirements for three levels of acoustic calibrators. Laboratory Standard (LS), Level 1, and Level 2.LS level acceptance... The minimum is Class 1, and the maximum is Class 2.Class LS acoustic calibrators are typically used only in laboratories, while Class 1 and Class 2 acoustic calibrators are for field use. According to IEC 61672-1, Class 1 sound calibrators are mainly used with Class 1 sound level meters, and Class 2 sound calibrators are mainly used with Class 2 sound level meters. It is designed for use in conjunction with other equipment. The acceptance limit of the LS-level acoustic calibrator is verified using laboratory standard microphones as specified in GB/T 20441.1-2010. Compliance with component requirements; the acceptance limits for Class 1 and Class 2 acoustic calibrators are based on the use of the standard microphones specified in GB/T 20441.4-2006. To verify compliance with the requirements of this document. To promote consistency and ease of use in acoustic calibrator testing, this document includes three normative appendices. ---Appendix A. Type Evaluation Tests; ---Appendix B Periodic Test; ---Appendix C Type Evaluation Report. And two informative appendices. ---Appendix D. Relationship between tolerance intervals, corresponding acceptance intervals, and maximum permissible measurement uncertainty; --- Appendix E. Examples of evaluations of compliance with the requirements of this document. This document does not include requirements for the equivalent free-field sound pressure level or random incident sound pressure level that can be used to adjust the overall sensitivity of the sound level meter. Some sound calibrators offer additional features, such as burst sounds; requirements for these features are not included in this document.

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 2900.86-2009 Electrical Engineering Terminology - Acoustics and Electroacoustics (IEC 60050-801.1994, IDT) GB/T 6113.203-2020 Specification for Radio Interference and Immunity Measurement Equipment and Methods - Part 2-3.Radio Interference Immunity measurement methods for radiated disturbance measurement (CISPR 16-2-3.2016, IDT) GB/T 9254.1-2021 Electromagnetic compatibility of information technology equipment, multimedia equipment and receivers – Part 1.Emission requirements (CISPR32.2015, MOD) Note. The content referenced in GB/T 9254.1-2021 is not technically different from the content referenced in CISPR22.2008 and CISPR32.2015. GB/T 17626.2-2018 Electromagnetic compatibility testing and measurement techniques - Electrostatic discharge immunity test (IEC 61000-4-2) 2008, IDT) GB/T 17626.3-2023 Electromagnetic compatibility testing and measurement techniques – Part 3.Radio frequency electromagnetic field radiated immunity testing (IEC 61000-4-3.2020, IDT) Note. The content referenced in GB/T 17626.3-2023 has no technical differences from the content referenced in IEC 61000-4-3.2006. GB/T 17626.20-2014 Electromagnetic Compatibility Testing and Measurement Techniques - Transverse Electromagnetic Wave (TEM) Waveguide Emission and Immunity Testing Verification (IEC 61000-4-20.2010, IDT) GB/T 17799.1-2017 Electromagnetic compatibility general standard - Immunity in residential, commercial and light industrial environments (IEC 61000-6- ...