General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025:2017); German and English version EN ISO/IEC 17025:2017— 65 стр.
Condition monitoring and diagnostics of machines - Requirements for qualification and assessment of personnel - Part 1: Requirements for assessment bodies and the assessment process (ISO 18436-1:2012)— 19 стр.
Cast iron pipes and fittings, their joints and accessories for the evacuation of water from buildings - Requirements, test methods and quality assurance; German version EN 877:1999 + A1:2006 + A1:2006/AC:2008— 59 стр.
