This Standard has been cancelled and replaced by ECSS-Q-ST-70-01C (15 Nov 2008).
This Standard defines the requirements and guidelines for the measurement and control of particulate and molecular contamination to be met by personnel, items, facilities and operations of space projects.
It covers mission definition, design, development, production, testing and operations of space products. Moreover, it identifies the possible failures and malfunctions due to contamination, and provides guidelines for maintaining the required levels of cleanliness during ground activities, launch and mission.
This Standard applies to all types and combinations of projects, organizations and products, and during all the project phases.