ECSS-Q-70B – Materials, mechanical parts and processes (14 December 2004)

This Standard has been cancelled and replaced by ECSS-Q-ST-70C (6 March 2009).


The purpose of this Standard is to define the requirements and statements applicable to materials, mechanical parts and processes to satisfy the mission performance requirements.

This Standard also defines the documentation requirements and the procedures relevant to obtaining approval for the use of materials, mechanical parts and processes in the fabrication of space systems and associated equipment.

This Standard covers the following:

  • management, including organization, reviews, acceptance status and documentation control;
  • selection criteria and rules;
  • evaluation, validation and qualification, or verification testing;
  • procurement and receiving inspection;
  • utilization criteria and rules.

The relationship between activities and programme phases is defined in Annex A.

The provisions of this Standard apply to all factors involved at all levels in the production of space systems. These can include manned and unmanned spacecraft, launchers, satellites, payloads, experiments, electrical ground support equipment, mechanical ground support equipment, and their corresponding organizations.

For specific projects, the requirements defined in this Standard should be tailored to match the true requirements of a particular profile and circumstances of a project.

NOTE: Tailoring is a process by which individual requirements of specifications, standards and related documents are evaluated and made applicable to a specific project, by selection and in some exceptional cases, modifications of existing or addition of new requirements.
[ECSS-M-00-02A, Clause 3]


This Standard cancels and replaces ECSS-Q-70A (19 April 1996).