Interactive · Hazardous-area classification

Zone Classification — a plant explorer

IEC 60079-10-1 · -10-2 Gas + dust
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Fuel terminal · loading bay, tank farm, vapour return Steady-state operation
Schematic of a fuel-storage and loading terminal with eight hazardous-area regions. Grade level Storage tank · fixed roof VAPOUR SPACE INSIDE TANK · ZONE 0 1 Vent VENT OUTLET Z1 + Z2 ENVELOPE 2 Bund BUND INTERIOR · Z2 3 Transfer pump skid PUMP SEAL · Z1 4 SKID SURROUND · Z2 5 Road tanker · top loading OPEN HATCH · Z1 6 BAY ENVELOPE · Z2 7 Solids silo · additive DUST CLOUD Z20 8 N ↑ Prevailing wind →
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