BS EN 13821:2002
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Potentially explosive atmospheres. Explosion prevention and protection. Determination of minimum ignition energy of dust/air mixtures
Hardcopy , PDF
12-04-2018
English
29-11-2002
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Test apparatus
4.1 Spark generation circuit
4.2 Test vessel
5 Test sample
6 Test procedure
6.1 Test description
6.2 Calibration
6.3 Conformity
6.3.1 Conformity tests
6.3.2 Criteria for conformity
6.4 Test report
Annex A (normative) Descriptions of spark generating systems
A.1 General
A.2 Triggering by high-voltage relay, using a
two-electrode system
A.3 Triggering by electrode movement, using a
two-electrode system
A.4 Triggering by auxiliary spark, using 3-electrode
system
A.5 Triggering by voltage increase, using two-electrode
system
A.6 Triggering by transformer, using two-electrode
system
A.7 Example of a test apparatus
Annex ZA (informative) Clauses of this European Standard
addressing essential requirements or other provisions
of EU Directives
Bibliography
Specifies a method of test to be determine the minimum ignition energy of a dust/air mixture by an electrically-generated spark.
| Committee |
EXL/23
|
| DevelopmentNote |
Supersedes 00/540187 DC (12/2002)
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes |
This EN specifies a method of test to determine the minimum ignition energy of a dust/air mixture by an electrically generated spark. It is intended that the dust be tested in a form representing conditions of actual use so that assessment of the hazard present can be made. Ignition energies determined by this method would be compared with ignition by a pointed source. This EN is applicable to the determination of the minimum ignition energy of a combustible dust dispersed in air, referred to hereafter as a \'dust/air mixture\'.
| Standards | Relationship |
| NEN EN 13821 : 2002 | Identical |
| NF EN 13821 : 2003 | Identical |
| EN 13821:2002 | Identical |
| UNI EN 13821 : 2004 | Identical |
| NBN EN 13821 : 2003 | Identical |
| I.S. EN 13821:2002 | Identical |
| SN EN 13821 : 2003 | Identical |
| UNE-EN 13821:2003 | Identical |
| NS EN 13821 : 1ED 2003 | Identical |
| DIN EN 13821:2003-03 | Identical |
| 12/30258581 DC : 0 | BS 5908-2 - FIRE AND EXPLOSION PRECAUTIONS AT PREMISES HANDLING FLAMMABLE GASES, LIQUIDS AND DUSTS - PART 2: GUIDE TO APPLICABLE STANDARDS AND REGULATIONS |
| IEC TR 61340-1:2012 | Electrostatics - Part 1: Electrostatic phenomena - Principles and measurements |
| BS 5908-2:2012 | Fire and explosion precautions at premises handling flammable gases, liquids and dusts Guide to applicable standards and regulations |
| PD 6686:2006 | Guidance on directives, regulations and standards related to prevention of fire and explosion in the process industries |
| 1994/9/EC : 1994 | DIRECTIVE 94/9/EC OF THE EUROPEAN PARLIAMENT AND THE COUNCIL OF 23 MARCH 1994 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES CONCERNING EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES |
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