What is ECSS-E-ST-31 Standard?

1 Answer
Can you answer this question?
May 3, 2023

ECSS-E-ST-31 is a European space standard that provides a framework for mechanical requirements for space systems. It includes the design and testing requirements for structural components, thermal management systems, and mechanisms. It guides material selection, manufacturing processes, and verification methods. The standard covers a wide range of mechanical components, subsystems, and systems that are used in space projects, including structures, mechanisms, thermal control systems, and propulsion systems. It provides specific requirements for each component or subsystem, including the design and performance requirements, the qualification and acceptance testing, and the documentation requirements.

One of the key aspects of ECSS-E-ST-31 is the emphasis on the reliability and safety of mechanical systems in space. This includes the development of redundant and fault-tolerant systems, as well as the use of materials and manufacturing processes that can withstand the harsh space environment.

The standard also covers the manufacturing processes for mechanical components and systems, including the quality assurance requirements, the testing and inspection requirements, and the documentation requirements. It provides guidelines for the selection of manufacturing processes and materials that are appropriate for space applications, as well as the verification and validation of the manufacturing processes. In addition to the design and manufacturing processes, ECSS-E-ST-31 also covers the testing and verification processes for mechanical systems. This includes the development of test plans and procedures, as well as the documentation of the test results. It also covers the environmental testing requirements, such as thermal cycling and vibration testing, to ensure that the mechanical systems can withstand the harsh conditions of space.

Overall, ECSS-E-ST-31 provides a comprehensive framework for mechanical requirements for space projects. By following this standard, space organizations can ensure that their mechanical systems are designed, manufactured, and tested to the highest standards of reliability and safety, resulting in reliable and safe space missions.

Click here to learn more about various European Space Standards.


Space Missions - A list of all Space Missions


Name Date
Altius 01 May, 2025
Arctic Weather Satellite (AWS) 01 Mar, 2024
Eutelsat Quantum 30 Jul, 2021
Sentinel 6 21 Nov, 2020
Cheops 18 Dec, 2019
EDRS 06 Aug, 2019
BepiColombo 20 Oct, 2018
Aeolus 22 Aug, 2018
Sentinel 3B 25 Apr, 2018
Sentinel 5 13 Oct, 2017


Name Date
INSAT-3DS 17 Feb, 2024
XPoSat 01 Jan, 2024
Aditya-L1 02 Sep, 2023
DS-SAR 30 Jul, 2023
Chandrayaan-3 14 Jul, 2023
NVS-01 29 May, 2023
TeLEOS-2 22 Apr, 2023
OneWeb India-2 26 Mar, 2023
EOS-07 10 Feb, 2023
EOS-06 26 Nov, 2022


Name Date
XRISM 07 Sep, 2023
SLIM 07 Sep, 2023
ALOS-3 07 Mar, 2023
ISTD-3 07 Oct, 2022
HTV9 21 May, 2020
HTV8 25 Sep, 2019
HTV7 23 Sep, 2018
HTV6 09 Dec, 2016
HTV5 19 Aug, 2015
HTV4 04 Aug, 2013


Name Date
NEO Surveyor 01 Jun, 2028
Libera 01 Dec, 2027
Europa Clipper 10 Oct, 2024
SpaceX CRS-29 09 Nov, 2023
Psyche 13 Oct, 2023
DSOC 13 Oct, 2023
Psyche Asteroid 05 Oct, 2023
Expedition 70 27 Sep, 2023
SpaceX Crew-7 25 Aug, 2023
STARLING 18 Jul, 2023