483 Parker Hannifin Corporation Fluid Control Division Europe General Catalogue FCDE/0110/UK/V2.0 Fluid Control Solutions Europe General Catalogue FCSE/0112/UK V2.2 07/2022 HAZARDOUS LOCATION CLASSIFICATION DEFINITIONS Category Fault protection Atmosphere Zone Example of protections EC Type examination by Notified Body ➞ annex III 1 Very high level 2 types of protection or 2 indépendant faults G (Gas) 0 "ia", "ta"... D (Dust) 20 EC Type examination by Notified Body ➞ annex III 2 High level One type of protection Habitual frequent malfunction G (Gas) 1 One type of protection "db", "mb", "tb"... D (Dust) 21 Internal production inspection ➞ EC declaration of conformity 3 Normal Required level of protection G (Gas) 2 "ec", "tc"... D (Dust) 22 Hazardous Location Classification Group Gas Reference I Methane IIA Propane IIB Ethylene IIC Hydrogen / Acethylene Surface Temperature Classes Class Temperature Max. Temperature T1 450°C T2 300°C T3 200°C T4 135°C T5 100°C T6 85°C Gas & Ignition Temperature 560°C Hydrogen T1 537°C Methane T1 425°C Ethylene T2 305°C Acetylene T2 210°C Kerozene T3 160°C Ethylether T4 95°C Carbon disulphide T6 °C 600 500 400 300 200 100 0 Hazardous Location Classification Group Dust Reference - - IIA Fibres IIB Non-conductive dust IIC Conductive dust
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