Active Product Assurance standards

The following standards can be downloaded in PDF or MS Word format.

The European Space Agency hereby disclaims any liability for use of these electronic documents and assumes no responsibility for any error or omission therein. See the License agreement – Disclaimer for more information.


  1. ECSS-Q-ST-10-04C – Critial-item control (31 July 2008)
  2. ECSS-Q-ST-10-09C – Nonconformance control system (31 July 2008)
  3. ECSS-Q-ST-10C Rev.1 – Product assurance management (15 March 2016)
  4. ECSS-Q-ST-20-07C – Quality and safety assurance for space test centres (1 October 2014)
  5. ECSS-Q-ST-20-08C – Storage, handling and transportation of spacecraft hardware (1 October 2014)
  6. ECSS-Q-ST-20-10C – Off-the-shelf items utilization in space systems (8 October2010)
  7. ECSS-Q-ST-20C Rev.1 – Quality assurance (1 March 2013)
  8. ECSS-Q-ST-30-02C – Failure modes, effects (and criticality) analysis (FMEA/FMECA) – (6 March2009)
  9. ECSS-Q-ST-30-09C – Availability analysis (31 July 2008)
  10. ECSS-Q-ST-30-11C Rev.1 – Derating – EEE components (4 October 2011)
  11. ECSS-Q-ST-30C Rev.1 – Dependability (15 February 2017)
  12. ECSS-Q-ST-40-02C – Hazard analysis (15 November 2008)
  13. ECSS-Q-ST-40-12C – Fault tree analysis – Adoption notice ECSS/IEC 61025 (31 July 2008)
  14. ECSS-Q-ST-40C Rev.1 – Safety (15 February 2017)
  15. ECSS-Q-ST-60-02C – ASIC and FPGA development (31 July 2008)
  16. ECSS-Q-ST-60-05C Rev.1 – Generic procurement requirements for hybrids (6 March 2009)
  17. ECSS-Q-ST-60-12C – Design, selection, procurement and use of die form monolithic microwave integrated circuits (MMICs) – (31 July 2008)
  18. ECSS-Q-ST-60-13C – Commercial electrical, electronic and electromechanical (EEE) components (21 October 2013)
  19. ECSS-Q-ST-60-14C – Relifing procedure – EEE components (15 November 2008)
  20. ECSS-Q-ST-60-15C – Radiation hardness assurance – EEE components (1 October 2012)
  21. ECSS-Q-ST-60C Rev.2 – Electrical, electronic and electromechanical (EEE) components (21 October 2013)
  22. ECSS-Q-ST-70-01C – Cleanliness and contamination control (15 November 2008)
  23. ECSS-Q-ST-70-02C – Thermal vacuum outgassing test for the screening of space materials (15 November 2008)
  24. ECSS-Q-ST-70-03C – Black-anodizing of metals with inorganic dyes (31 July 2008)
  25. ECSS-Q-ST-70-04C – Thermal testing for the evaluation of space materials, processes, mechanical parts and assemblies (15 November 2008)
  26. ECSS-Q-ST-70-05C – Detection of organic contamination surfaces by IR spectroscopy (6 March 2009)
  27. ECSS-Q-ST-70-06C – Particle and UV radiation testing for space materials (31 July 2008)
  28. ECSS-Q-ST-70-07C – Verification and approval of automatic machine wave soldering (16 April 2010)
  29. ECSS-Q-ST-70-08C – Manual soldering of high-reliability electrical connections (6 March 2009)
  30. ECSS-Q-ST-70-09C – Measurements of thermo-optical properties of thermal control materials (31 July 2008)
  31. ECSS-Q-ST-70-10C – Qualification of printed circuit boards (15 November 2008)
  32. ECSS-Q-ST-70-11C – Procurement of printed circuit boards (15 November 2008)
  33. ECSS-Q-ST-70-12C – Design rules for printed circuit boards (14 July 2014)
  34. ECSS-Q-ST-70-13C Rev.1: Measurement of the peel and pull-off strength of coatings and finishes using pressure-sensitive tapes (5 Oct 2011)
  35. ECSS-Q-ST-70-14C – Corrosion (1 November 2016)
  36. ECSS-Q-ST-70-18C – Preparation, assembly and mounting of RF coaxial cables (15 November 2008)
  37. ECSS-Q-ST-70-20C – Determination of the susceptibility of silver-plated copper wire and cable to “red-plague” corrosion
  38. ECSS-Q-ST-70-21C – Flammability testing for the screening of space materials (5 February 2010)
  39. ECSS-Q-ST-70-22C – Control of limited shelf-life materials (31 July 2008)
  40. ECSS-Q-ST-70-26C Rev.1 – Crimping of high-reliability electrical connections (15 March 2017) + Corr.1 (1June2017)
  41. ECSS-Q-ST-70-28C – Repair and modification of printed circuit board assemblies for space use (31 July 2008)
  42. ECSS-Q-ST-70-29C – Determination of offgassing products from materials and assembled articles to be used in a manned space vehicle crew compartment (15 November 2008)
  43. ECSS-Q-ST-70-30C – Wire wrapping of high-reliability electrical connections
  44. ECSS-Q-ST-70-31C – Application of paints on space hardware (15 November 2008)
  45. ECSS-Q-ST-70-36C – Material selection for controlling stress-corrosion cracking (6 March 2009)
  46. ECSS-Q-ST-70-37C – Determination of the susceptibility of metals to stress-corrosion cracking (15 November 2008)
  47. ECSS-Q-ST-70-38C – High-reliability soldering for surface mount and mixed technology (31 July 2008)
  48. ECSS-Q-ST-70-39C – Welding of metallic materials for flight hardware (1 May 2015)
  49. ECSS-Q-ST-70-45C – Mechanical testing of metallic materials (31 July 2008)
  50. ECSS-Q-ST-70-46C Rev.1 – Requirements for manufacturing and procurement of threaded fasteners (6 March 2009)
  51. ECSS-Q-ST-70-50C – Particles contamination monitoring for spacecraft systems and cleanrooms (4 October 2011)
  52. ECSS-Q-ST-70-53C – Materials and hardware compatibility tests for sterilization processes (15 November 2008)
  53. ECSS-Q-ST-70-54C – Ultracleaning of flight hardware (15 February 2017)
  54. ECSS-Q-ST-70-55C – Microbial examination of flight hardware and cleanrooms
  55. ECSS-Q-ST-70-56C – Vapour phase bioburden reduction for flight hardware (30 August 2013)
  56. ECSS-Q-ST-70-57C: Dry heat bioburden reduction for flight hardware (30 August 2013)
  57. ECSS-Q-ST-70-58C – Bioburden control of cleanrooms (15 November 2008)
  58. ECSS-Q-ST-70-71C – Materials, processes and their data selection (15 October 2014)
  59. ECSS-Q-ST-70C Rev.1 – Materials, mechanical parts and processes (15 October 2014)
  60. ECSS-Q-ST-80C Rev.1 – Software product assurance (15 February 2017)