BS EN 50241-2:1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Specification for open path apparatus for the detection of combustible or toxic gases and vapours Performance requirements for apparatus for the detection of combustible gases
Hardcopy , PDF
31-05-2010
English
15-09-1999
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Foreword
1 Scope
2 Normative references
3 Definitions
4 General requirements
5 Performance requirements
5.1 Requirements for tests
5.2 Unpowered storage
5.3 Calibration curve (not applicable to
alarm-only apparatus)
5.4 Drift (continuous duty apparatus only)
5.5 Alarm
5.6 Temperature variation
5.7 Pressure variation
5.8 Water vapour interference
5.9 Vibration
5.10 Alignment
5.11 Time of response
5.12 Power supply variations
5.13 Power supply interruptions and transients
5.14 Recovery from power supply interruption
5.15 Electromagnetic compatibility
5.16 Attenuation of radiation
5.17 Beam blockage
5.18 Long range operation
5.19 Direct solar radiation (applicable for apparatus
intended for outdoor use)
6 Field verification equipment
7 Instructions for use
Defines performance requirements for Group II1) portable, transportable and fixed apparatus for the detection and measurement of integral concentrations of combustible gas or vapour in air over a defined open path. The apparatus or part of apparatus may be installed or transported for use in potentially explosive atmospheres. General requirements and test methods applicable to the apparatus are also covered.
| Committee |
EXL/31
|
| DevelopmentNote |
Supersedes 96/205827 DC (09/2005)
|
| DocumentType |
Standard
|
| Pages |
8
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| NF EN 50241-2 : 2005 | Identical |
| UNE-EN 50241-2:1999 | Identical |
| SN EN 50241-2 : 1999 | Identical |
| DIN EN 50241-2 : 2000 | Identical |
| NEN EN 50241-2 : 1999 | Identical |
| EN 50241-2:1999 | Identical |
| I.S. EN 50241-2:1999 | Identical |
| NBN EN 50241-2 : 1ED 2000 | Identical |
| EN 50241-1 : 99 AMD 1 2004 | SPECIFICATION FOR OPEN PATH APPARATUS FOR THE DETECTION OF COMBUSTIBLE OR TOXIC GASES AND VAPOURS - PART 1: GENERAL REQUIREMENTS AND TEST METHODS |
| EN 50270:2015 | Electromagnetic compatibility - Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen |
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