UNI EN 13821 : 2004
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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POTENTIALLY EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - DETERMINATION OF MINIMUM IGNITION ENERGY OF DUST/AIR MIXTURES
30-11-2017
01-01-2004
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.
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| NF EN 13821 : 2003 | Identical |
| NBN EN 13821 : 2003 | Identical |
| NEN EN 13821 : 2002 | Identical |
| NS EN 13821 : 1ED 2003 | Identical |
| I.S. EN 13821:2002 | Identical |
| UNE-EN 13821:2003 | Identical |
| SN EN 13821 : 2003 | Identical |
| BS EN 13821:2002 | Identical |
| EN 13821:2002 | Identical |
| DIN EN 13821:2003-03 | Identical |
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