ESA PSS (ESA Procedures, Specifications and Standards) are specifications that were produced until 1994 by ESA before the establishment of ECSS.
Most of the ESA PSS documents have already been superseded by ECSS Standards or ECSS Handbooks, some are still active.
Attached is a scanned version of the published ESA PSS documents and allocated ESA PSS documents numbers (as of 4 March 1996). –> ESA PSS-numbers-allocated(4March1996).pdf
NOTE: If there is no Issue number and date mentioned it means that this document does not exist.
Several of the ESA PSS specifications were scanned and are available for download:
Request or question about ESA PSS
In case you need an ESA PSS document or have a question about it please send and e-mail to the ECSS Secretariat Webmaster.
P.O. Box 299
2200AG Noordwijk ZH