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

Standard No.

BS EN 50271:2010

Release Date

2011

Published By

British Standards Institution (BSI)

Status

Be replaced

Replace By

BS EN 50271:2018

Latest

BS EN 50271:2018

Replace

BS EN 50271:2002

Scope

This European Standard specifies minimum requirements and tests for electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen using software and/or digital technologies. Additional requirements are specified if compliance with safety integrity level 1 (SIL 1) according to EN 61508 series is required for low demand mode of operation. NOTE 1 It is recommended to apply this European Standard for apparatus used for safety applications with SIL-requirement 1 instead of EN 50402. However, the technical requirements of EN 50271 and EN 50402 are the same for SIL 1. NOTE 2 For fixed apparatus used for safety applications with SIL-requirements higher than 1 EN 50402 is applicable. This European Standard is applicable to fixed, transportable and portable apparatus intended for use in domestic premises as well as commercial and industrial applications. This European Standard does not apply to external sampling systems, or to apparatus of laboratory or scientific type, or to apparatus used only for process control purposes. This European Standard supplements the requirements of the European Standards for the detection and measurement of flammable gases and vapours (e.g. EN 60079-29-1, EN 50241-1, EN 50241-2, EN 50194-1, EN 50194-2), toxic gases (e.g. EN 45544 series, EN 50291-1, EN 50291-2) or oxygen (e.g. EN 50104). NOTE 3 These European Standards will be mentioned in this European Standard as "metrological standards". NOTE 4 The examples above show the state of the standardisation for gas detection apparatus at the time of publishing this European Standard. There may be other metrological standards for which this European Standard is also applicable. This European Standard is a product standard which is based on EN 61508 series. It covers part of the phase 9 "realisation" of the overall safety life cycle defined in EN 61508-1.

BS EN 50271:2010 Referenced Document

• EN 45544-1 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods*， 2015-01-01 Update
• EN 45544-2 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2: Performance requirements for apparatus used for exposure measurement*， 2015-01-01 Update
• EN 45544-3 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3: Performance requirements for apparatus used for general gas detection*， 2015-01-01 Update
• EN 45544-4 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 4: Guide for selection@ installation@ use and maintenance*， 2016-03-01 Update
• EN 50104 Electrical apparatus for the detection and measurement of oxygen - Performance requirements and test methods
• EN 50194-1 Electrical apparatus for the detection of flammable gases in household premises - Part 1: Test methods and performance requirements*， 2023-10-13 Update
• EN 50194-2 Electrical apparatus for the detection of combustible gases in domestic premises - Part 2: Electrical apparatus for continuous operation in a fixed installation in recreational vehicles and similar premises - Additional test methods and performance requir*， 2019-05-01 Update
• EN 50241-1 Specification for Open Path Apparatus for the Detection of Combustible or Toxic Gases and Vapours@ Part 1: General Requirements and Test Methods
• EN 50241-2 Specification for Open Path Apparatus for the Detection of Combustible or Toxic Gases and Vapours - Part 2: Performance Requirements for Apparatus for the Detection of Combustible Gases
• EN 50291-1 Gas detectors - Electrical apparatus for the detection of carbon monoxide in domestic premises - Part 1: Test methods and performance requirements*， 2018-04-01 Update
• EN 50291-2 Electrical apparatus for the detection of carbon monoxide in domestic premises - Part 2: Electrical apparatus for continuous operation in a fixed installation in recreational vehicles and similar premises including recreational craft - Additional test met
• EN 60079-29-1:2007 Explosive atmospheres - Part 29-1: Gas detectors - Performance requirements of detectors for flammable gases*， 2024-04-19 Update
• EN 60079-29-2 Explosive atmospheres - Part 29-2: Gas detectors - Selection, installation, use and maintenance of detectors for flammable gases and oxygen*， 2015-05-01 Update
• EN 61508-1:2001 FUNCTIONAL SAFETY OF ELECTRICAL/ELECTRONIC/PROGRAMMABLE ELECTRONIC SAFETY-RELATED SYSTEMS - Part 1: General requirements
• EN 61508-2:2001 Functional Safety of Electrical/Electronic/Programmable Electronic Safety-Related Systems Part 2: Requirements for Electrical/Electronic/Programmable Electronic Safety-Related Systems
• EN 61508-3:2001 Functional Safety of Electrical/Electronic/Programmable Electronic Safety-Related Systems Part 3: Software Requirements
• EN 61508-4:2001 Functional Safety of Electrical/Electronic/Programmable Electronic Safety-Related Systems Part 4: Definitions and Abbreviations
• EN 61508-5:2001 Functional Safety of Electrical/Electronic/Programmable Electronic Safety-Related Systems Part 5: Examples of Methods for the Determination of Safety Integrity Levels

BS EN 50271:2010 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