The European Standard EN 15038 "Translation services – Service requirements" was published in 2006 by the CEN - European Committee for Standardisation.
It is the first standard to state the requirements for translation service providers (TSPs) with regard to both human and technical resources, quality and project management, procedures and contractual obligations.
We are not authorised to release copies of the standard, as it is subject to copyright.
You can purchase it on the UNI website.
The real novelty is that revision becomes an integral part of the production process, which consists of: translation and check by a professional translator, and revision, completed by a person other than the translator.
For more information
LQS Workflow.pdf