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GB/T 46189-2025Space environment - General requirements of ground simulation test for space environmental effects of spacecraft unit (English PDF)

空间环境　航天器组件空间环境效应地面模拟试验通用要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 5, 2025

Implementation date

October 5, 2025

Scope

GB/T 46189-2025 is the English-translated version of 空间环境　航天器组件空间环境效应地面模拟试验通用要求.

GB/T 46189-2025 is the Chinese standard "Space environment - General requirements of ground simulation test for space environmental effects of spacecraft unit".

Its scope clause reads: This document specifies the laboratory environment and test system (including vacuum system, test...) for ground simulation tests of spacecraft component space environment effects.

Basic requirements for test control systems, test measurement systems, test specimens, test safety, and ground simulation tests (including real space environment effects) Air-cooled welding test, vacuum discharge test, vacuum discharge test, thermal test, gas venting test, micro-vibration test, total ionization dose effect test, surface The purpose and parameters of tests including charge/discharge effect test, atomic oxygen erosion effect test, ultraviolet radiation effect test, and strong magnetic field effect test.

Special requirements. This document applies to ground-based simulation tests of the space environment effects on spacecraft components during their on-orbit flight phase.

It covers both spacecraft system-level and subsystem-level simulations. This is for reference in ground-based simulation experiments of space environment effects. Its clauses include terms and definitions; abbreviations.

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Document preview — GB/T 46189-2025

National Standard of the People's Republic of China

ICS: 49.020
Classification: V 06

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1.Scope
2 Normative References
3.Terms and Definitions
4.Abbreviations
5.Basic Requirements
6.Vacuum cold welding test
7 Vacuum Discharge Test
8.Thermal test
9.Exhaust Test
10.Micro-vibration test
11 Total Ionization Dose Effect Test
12 Surface charge-discharge effect test
13 Atomic Oxygen Erosion Effect Test
14 Ultraviolet Radiation Effect Experiment
15 Strong Magnetic Field Effect Experiment

1 Scope

This document specifies the laboratory environment and test system (including vacuum system, test...) for ground simulation tests of spacecraft component space environment effects.

Basic requirements for test control systems, test measurement systems, test specimens, test safety, and ground simulation tests (including real space environment effects)

Air-cooled welding test, vacuum discharge test, vacuum discharge test, thermal test, gas venting test, micro-vibration test, total ionization dose effect test, surface

The purpose and parameters of tests including charge/discharge effect test, atomic oxygen erosion effect test, ultraviolet radiation effect test, and strong magnetic field effect test.

Special requirements.

This document applies to ground-based simulation tests of the space environment effects on spacecraft components during their on-orbit flight phase. It covers both spacecraft system-level and subsystem-level simulations.

This is for reference in ground-based simulation experiments of space environment effects.

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 30114.2 Terminology for Space Science and Its Applications Part 2.Space Physics

GB/T 32452 Space Terminology - Space Environment

GB T42047-2022 Methods for Determination of Exhaust Products from Materials and Components Inside Sealed Cabins of Manned Spacecraft

GB/T 42846-2023 Ground-based simulation method for space radiation effects of non-metallic materials in the space environment

GB/T 44000-2024 General Requirements for Ground Simulation Test Devices for Space Environment Effects of Space Environment Materials

3 Terms and Definitions

The terms and definitions defined in GB/T 30114.2, GB/T 32452 and GB/T 44000-2024, as well as the following terms and definitions, apply to this document.

3.1 Multipacing

In a vacuum, the time it takes for an electron to pass between two discharge surfaces separated by a certain distance is half a cycle of the alternating voltage applied to the two surfaces.

When the period is an odd multiple, a vacuum discharge phenomenon occurs due to the secondary electron multiplication effect.

3.2 Disturbance source

Equipment, mechanisms, or components that generate on-orbit micro-vibration environments.

3.3

Changes in component-related parameters caused by the annealing or growth of radiation-induced charges during and after irradiation.

4 Abbreviations

The following abbreviations apply to this document. […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Editions of GB/T 46189

Edition	Title	Revision	Status
GB/T 46189-2025	Space environment - General requirements of ground simulation test for space environmental effects of spacecraft unit	current edition	Current

This page sells the current edition, GB/T 46189-2025. Earlier editions are listed for reference only.

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