Aerospace series - Recommended practices for standardising company standards; German and English version EN 4617:2006
Edition 2008-02

Roof-waterproofing works - Contract to provide services
Edition 2012-12-01

Standardization - Part 1: Principles
Edition 2022-12

Papering work - Works contract
Edition 2010-07-15

Plumbers work - Contract to provide services
Edition 2012-08-01

Standardization and related activities - General vocabulary (ISO/IEC Guide 2:2004); Trilingual version EN 45020:2006
Edition 2007-03

Roofing work - Contract to provide services
Edition 2011-04-15

Construction joineries - Contract to provide services
Edition 2011-09-01

Scaffolding works - Works contract
Edition 2007-04-01