Quality management and quality assurance standards - Part 1: Guidelines for selection and use (ISO 9000-1:1994); Trilingual version EN ISO 9000-1:1994— 47 стр.
Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 2: General and guidance for optical fibre cable joint closures, protected microduct closures, and microduct connectors; German version EN 50411-2:2008— 35 стр.