I.S. EN 50073:1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
GUIDE FOR SELECTION, INSTALLATION, USE AND MAINTENANCE OF APPARATUS FOR THE DETECTION AND MEASUREMENT OF COMBUSTIBLE GASES OR OXYGEN
Hardcopy , PDF
04-09-2008
English
01-01-1999
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
1 Scope
2 Normative references
3 Definitions
4 Intended application
4.1 General
4.2 Performance testing
4.3 Electrical testing and certification for
use of apparatus in potentially explosive
atmospheres
4.4 Fixed apparatus and fixed systems
4.5 Transportable apparatus
4.6 Portable apparatus
4.7 Sampling lines and sampling probes
4.8 Filters
4.9 Flame arrestors
5 Criteria of selection
5.1 General
5.2 Catalytic sensor
5.3 Thermal conductivity sensor
5.4 Infrared sensor
5.5 Semicondutor sensor
5.6 Electrochemical sensor
5.7 Flame ionization detector (FID)
5.8 Flame temperature analyser (FTA)
5.9 Photo ionization detector (PID)
5.10 Paramagnetic oxygen detector
6 Operation of fixed gas detection systems
6.1 General
6.2 Installation
6.3 Criteria for the placement of sensors and
sampling points
6.4 Operation
7 Operation of portable and transportable gas detection
apparatus
7.1 General
7.2 Operation
8 Training
8.1 Operator training
8.2 Maintenance training
Annex A (informative) Physical and chemical principles
of sensors
A.1 - Catalytic sensors (see 5.2)
A.2 - Thermal conductivity sensors (see 5.3)
A.3 - Infrared absorption sensors (see 5.4)
A.4 - Semiconductor sensors (see 5.5)
A.5 - Electrochemical sensor (see 5.6)
A.6 - Flame ionization detectors (FID) (see 5.7)
A.7 - Flame temperature analyser (FTA) (see 5.8)
A.8 - Photo ionization detector (PID) (see 5.9)
A.0 - Paramagnetic oxygen detector (see 5.10)
Annex B (informative) Nature of a release
B.1 - General
B.2 - Parameters influencing the release
B.3 - Outdoor sites and open structures
B.4 - Buildings and enclosures
Annex C (informative) Measuring ranges up to LEL
C.1 - Reference to the annex of EN 50054
Annex D (informative) Environmental parameters
D.1 - Typical environmental conditions used in type testing
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