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PR NF X50-096/A11 ; PR NF EN ISO/IEC 17043/A11
Conformity assessment - General requirements for the competence of proficiency testing providers
SN ISO 3159 ; NIHS 95-11:2009-12
Timekeeping instruments - Wrist-chronometers with spring balance oscillator
Edition
2009-12
SN EN 54-11
Fire detection and fire alarm systems - Part 11: Manual call points
Edition
2001-07
Edition
2015-11
Edition
2019-09
Energiemanagement
Energiemanagementsysteme und Energieaudits
Edition
2019-07