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GB/T 46132-2025: Space environment - Test method of space radiation effects for space materials
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GB/T 46132-2025: Space environment - Test method of space radiation effects for space materials

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ICS 49.025.01 CCSV06 National Standard of the People's Republic of China Space environment and space radiation effects of aerospace materials Test methods Released on August 29, 2025 Implementation on August 29, 2025 State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Test Purpose and Principle 1 4.1 Test Purpose 1 4.2 Test Principle 1 5 General Requirements 2 5.1 Laboratory Environment 2 5.2 Vacuum system 2 5.3 Measurement and control system 3 5.4 Test Safety 3 5.5 Other 3 6 Test Equipment 3 6.1 Total dose effect test equipment 3 6.2 Ultraviolet radiation effect test equipment 4 7 Test parameters 4 7.1 Vacuum degree 4 7.2 Temperature 5 7.3 Total dose irradiation test parameters 5 7.4 UV irradiation test parameters 6 8 Sample 6 8.1 Sample status 6 8.2 Specimen Installation 6 8.3 Specimen testing 6 9 Test Procedure 6 9.1 Test Procedure 6 9.2 Test Preparation 7 9.3 Test Start 7 9.4 Irradiation 8 9.5 Performance Testing 8 9.6 Judgment of Test Progress 8 9.7 End of Test 8 9.8 Post-test processing 8 10 Test Interruption and Handling 8 10.1 Test system failure and treatment 8 10.2 Sample failure and treatment 9 11 Data Processing 9 11.1 Processing of sample performance measurement results 9 11.2 Changes in sample properties before and after irradiation 9 12 Test Documents 10 12.1 Pre-test documents 10 12.2 Test process records 10 12.3 Post-test documentation 10 Preface 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. 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 was proposed by the Chinese Academy of Sciences. This document is under the jurisdiction of the National Technical Committee for Standardization of Aerospace Technology and Its Applications (SAC/TC425). This document was drafted by. Beijing Satellite Environmental Engineering Research Institute, Harbin Institute of Technology, Shenzhen Star Earth Twin Technology Co., Ltd., China Science and Technology National Space Science Center of the Chinese Academy of Sciences, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Xiangtan University Nanjing University of Aeronautics and Astronautics, China Institute of Metrology, Xinjiang Institute of Physical and Chemical Technology, Chinese Academy of Sciences, Beijing Satellite Manufacturing Co., Ltd. Co., Ltd., China Academy of Space Technology, Xiamen Institute of Rare Earth Materials, Hunan University, and Guizhou Normal University. The main drafters of this document are. Shen Zicai, Ding Yigang, Ji Qizheng, Ouyang Xiaoping, Li Xingji, Li Yudong, Liu Yuming, Ma Yingqi, Shao Yuchuan, Zhong Xiangli, Tang Xiaobin, Zhang Yuzhi, Li Dehong, Song Lijun, Bai Jingying, Zhang Jiaqiang, Wang Shenglong, Wang Jinbin, Li Hongwei, Zhong Gaokuo, Zheng Yifan, Yang Jianqun, Song Hongjia, Wang Shijin, Bi Jinshun, Cui Naiyuan, Li Changhong, Sun Wei, and Liu Wei. Space environment and space radiation effects of aerospace materials Test methods

1 Scope

This document describes the test methods for the effects of space radiation on aerospace materials. This document applies to the single-factor environmental effects and multi-factor environmental synergy of aerospace materials in space radiation environments such as electrons, protons, and ultraviolet radiation. Ground simulation test of the effect.

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 to This document. GB/T 32452 Spacecraft Space Environment Terminology GB/T 41543 General specification for simulation test of space environment effects on aerospace materials GB/T 42846-2023 Ground simulation method for space radiation effects of non-metallic materials in space environment

3 Terms and Definitions

The terms and definitions defined in GB/T 32452, GB/T 41543 and GB/T 42846-2023 apply to this document. 4.Experimental Purpose and Principle 4.1 Purpose of the Test Obtain aerospace materials that can withstand performance changes in radiation environments such as electrons, protons, and ultraviolet rays. 4.2 Test Principle Place aerospace materials in a ground simulation environment, and use ground simulation of electrons, protons, gamma rays, etc. according to the principle of equivalent effect simulation. Dose depth distribution in the material (according to the requirements of Appendix C of GB/T 42846-2023) and dose depth of space energy particles in the material The distribution is equivalent, using a specific light source to simulate the radiation of ultraviolet radiation on the material in space, and the material is subjected to the test before, during or after the test. It can conduct in-situ or ex-situ testing to obtain the changes in the performance of aerospace materials due to space radiation. Taking the electron, proton and ultraviolet comprehensive irradiation simulation test as an example, the test device and irradiation simulation are shown in Figure 1. ...