COMPARISON TABLE US (UL, FM) AND EUROPEAN (ATEX) CLASSIFICATION
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HAZARDOUS AREA ELECTRICAL GUIDELINES |
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| SUBSTANCE | TYPICAL ENVIRONMENTS | US CLASSIFICATIONS | EUROPEAN CLASSIFICATION | VOLATILITY* | |
|---|---|---|---|---|---|
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CLASS 1 |
Flammable Gasses, Vapors or Liquids (Acetylene, Hydrogen, Ethylene, Propane) |
– Oil Refinery – – Paint Warehouse – – Offshore Oil Rig – – Spray Booth – |
Division 1 (Hazard Likely) |
Category 1 / Zone 0 (Hazard Certain) |
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| Category 2 / Zone 1 (Hazard Likely) |
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| Division 2 (Hazard Not Likely) |
Category 3 / Zone 2 | ||||
| CLASS 2 | Combustible Dusts (Metals [Div.1 only], Coal, Grain) |
– Coal Mine – – Grain Silo – – Munitions Factory – – Hay Storage Facility – |
Division 1 (Hazard Likely) |
Category 1 / Zone 0 (Hazard Certain) |
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| Category 2 / Zone 1 (Hazard Likely) |
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| Division 2 (Hazard Not Likely) |
Category 3 / Zone 2 (Hazard Not Likely) |
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| CLASS 3 | Ignitable Fibers & Flyings (Machined Magnesium) |
– Paper Mill – – Woodworking Facility – – Textile Mill – – Cotton Gin – |
Division 1 (Hazard Likely) |
Category 1 / Zone 0 (Hazard Certain) |
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| Category 2 / Zone 1 (Hazard Likely) |
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| Division 2 (Hazard Not Likely) |
Category 3 / Zone 2 (Hazard Not Likely) |
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* A torch certified to Category 1 (Zone 0) is safe for use in areas rated Category 2 (Zone 1) and Category 3 (Zone 2). Conversely the opposite is not possible. This information should be taken only as a guideline. Contact us for specific details on both, US and European Directives.
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US CLASSIFICATIONS |
EUROPEAN CLASSIFICATIONS |
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| Division 1: Where volatile substances can exist all of the time or some of the time under normal operating conditions. |
Division 2: Where volatile substances are not likely to exist under normal operating conditions. |
Category 1 / Zone 0: Flammable material present for long periods (more than 1.000 hours a year). |
Category 3 / Zone 2: Flammable material present for short periods Category 2 / Zone 1: (less than 10 hours a year) |
| Category 2 / Zone 1: (less than 10 hours a year). Flammable material present in normal operation (10- 1.000 hours a year). |
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DIAGRAM OF CLASS / DIVISIONS / ZONES
