Class III вЂ“ Ignitable Fibres and Flyings (No Subgroups)Дivision 1 - Locations where ignitable gas/vapor/liquid/dustВ are present continuously or some ofВ the time under normal operating conditions.Дivision 2 - Locations where ignitable gas/vapor/liquid/dust are not likely to exist under normalВ operating conditions.Д«ased on the above a rating of вЂClass I, Div 1, Group C, DвЂ™ would be given to an environment where Ethylene and Methane are expected toВ be present continuously.Group F - Combustible carbon dust (charcoal & coke dust) - above ground onlyвЂ‹ Group E - Conductive dust (mechanical вЂ“ factories, recyclers) Group D - Methane,В and equivalent gas groups Group C - Ethylene and equivalent gas groups вЂ‹ Group B - Hydrogen and equivalent gas groups вЂ‹ Group A - Acetylene and equivalent gas groupsвЂ‹ ClassesД¬lass I вЂ“ Flammable Gases, Vapours or Liquids The classes are also split into subgroups to determine specific and/or equivalent substances. The classes define the substance whilst the Division defines the operating conditions. UL is classified by Divisions and Classes. IECEx is very similar to ATEX however some of the definitions for the protection offered do differ so keep that in mind.Дownload the CML ATEX/IECEx Guide HERE - UL Explained You will then need to use equipment suitable and certified for use the Zone. Each Zone is for a particular Hazardous Environment. Please consult your safety supervisor for the correct equipment class you require based on the zones you are subject to.ДЄTEX Equipment is classified by Group, Type of protection, Gas/Dust Group, Temperature class and equipment protection level.ДЄreas where ATEX must be used is classified by Zones. All of the numbers and letters on the label correspond to the level of protection offered and in what environments the equipment can be used. ATEX ExplainedДownload the CML ATEX/IECEx Guide HERE - ДЄn ATEX Label will tell you exactly where the equipment can be used based on the Equipment classification and Zones specified. Your company may choose a specific standard to base decisions from. The difference between these three is the testing/classification body.Д®ach rating is created by a recognised standards body with ATEX Being European, UL being American and IECEx often used for international standards. What is the difference between ATEX, UL and IECEx? Often a safety officer will have this information to hand and be able to direct you as to what type of equipment you need for different areas of your plant. People who use devices like Two-Way Radios in these environments need to ensure that the device itself complies with the standard set for that particular zone. For example, you may see a вЂNo Naked FlamesвЂ™ sign in your petrol station when filling up your car, this is because the area is classed as a Hazardous Environment. What is a Hazardous Environment?ДЄ Hazardous Environment is an area where fumes, dust, gas or vapour may cause a fire or explosion when an ignition source is used in the area. Intrinsically safe is a term used to describe a collection of devices and equipment that meet the requirements set out by the certification body (ATEX, UL or IECEx) to determine that device or equipmentвЂ™s safety when used in a hazardous environment. Please consult your Safety Department for your exact Hazardous Location requirements. Please note that Radio Industries Australia Pty Ltd does not classify or take responsibility for the Hazardous Location Settings mentioned in this page, this is just a guide.

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