Typical Hazardous Environments: Automotive refuelling stations or petrol stations - Oil refineries, rigs and processing plants - Chemical processing plants - Printing industries, paper and textiles - Hospital operating theatres - Aircraft refuelling and hangars - Surface coating industries - Underground coal mines - Sewerage treatment plants - Gas pipelines and distribution centres - Grain handling and storage - Woodworking areas - Sugar refineries - Metal surface grinding, especially aluminium dusts and particles

What about sewage network?

How would you classify it? What about Zone 1?

Answer: correct!!!

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