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prБДС EN 50104:2019/A1:2022

Electrical equipment for the detection and measurement of oxygen - Performance requirements and test methods

General information

60.55     Aug 16, 2022

45.99    Feb 9, 2023



European Standard


Appropriate for SMEs


This document specifies general requirements for design, testing and performance, and describes the test methods that apply to portable, transportable and fixed equipment for the measurement of the oxygen concentration in gas mixtures indicating up to 25 % (v/v).

Directives and Regulations

When the standard is harmonized under a directive or regulation, the word Harmonized appear. When such an inscription does not appear, it means that the standard is related to / supporting the relevant directive or regulation.


Directive 2014/34/EU Of The European Parliament And Of The Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres (recast)

Life cycle


БДС EN 50104:2020


prБДС EN 50104:2019/A1:2022
60.55 Ratification completed (DOR)
Aug 16, 2022

Related project

Adopted from EN 50104:2019/A1:2023