NBN EN 14034-3 : 2006 + A1 2011
Current
The latest, up-to-date edition.
DETERMINATION OF EXPLOSION CHARACTERISTICS OF DUST CLOUDS - PART 3: DETERMINATION OF THE LOWER EXPLOSION LIMIT LEL OF DUST CLOUDS
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Test apparatus
4.1 General
4.2 Explosion vessel
4.3 Dust dispersion system (dust container, fast
acting valve, connecting tube, dust disperser)
4.4 Ignition source
4.5 Control unit
4.6 Pressure measuring system
5 Dust sample
6 Test procedure
7 Calibration and verification
7.1 Calibration
7.2 Verification
8 Safety precautions/instructions
9 Alternative test equipment/procedures
10 Test report
Annex A (normative) Electro Pneumatic Valve
Annex B (normative) Dust disperser with 5 mm holes
Annex C (normative) 20 l sphere
C.1 General
C.2 Test apparatus
C.3 Test conditions
C.4 Test procedure
Annex ZA (informative) Relationship between this European
Standard and the Essential
Requirements of EU Directive 94/9/EC
Bibliography
Defines a test method for the determination of the lower explosion limit of dust clouds in a closed vessel under defined initial conditions of pressure and temperature.
| DevelopmentNote |
2006 Edition Re-issued in February 2011 & incorporates AMD 1 2011. (02/2011)
|
| DocumentType |
Standard
|
| PublisherName |
Belgian Standards
|
| Status |
Current
|
| Standards | Relationship |
| UNE-EN 14034-3:2006 | Identical |
| UNI EN 14034-3 : 2011 | Identical |
| EN 14034-3:2006+A1:2011 | Identical |
| SN EN 14034-3+A1:2011 | Identical |
| BS EN 14034-3 : 2006 | Identical |
| I.S. EN 14034-3:2006 | Identical |
| DIN EN 14034-3:2011-04 | Identical |
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