BS EN 50271:2018 PDF

Scope: This European Standard specifies requirements and tests for electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen using software and/or digital technologies. It is applicable to fixed, transportable and portable apparatus intended for use · in domestic premises or · in industrial applications where safety integrity levels 1 or 2 of IEC 61508 or safety categories 1 or 2 of EN 954-1 are required. In industrial applications this standard is also applicable to apparatus which are intended for use in hazardous areas which may contain explosive or potentially explosive atmospheres. This European standard supplements the requirements of the European Standards for the detection and measurement of combustible gases and vapours (e.g. EN 61779-1 to EN 61779-5, EN 50194), toxic gases (e.g EN 45544, EN 50291) or oxygen (e.g. EN 50104). note:1 For the purposes of this standard the word 'toxic' should be taken to include 'very toxic', 'toxic', 'harmful', 'corrosive', 'irritating', 'carcinogenic', 'mutagenic' and 'toxic to reproduction'.

BS EN 50271:2018 history

1970 BS EN 50271:2018 Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen. Requirements and tests for apparatus using software and/or digital technologies
2011 BS EN 50271:2010 Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen. Requirements and tests for apparatus using software and/or digital technologies
2002 BS EN 50271:2002 Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen - Requirements and tests for apparatus using software and/or digital technologies