Zone Classification for Hazardous Areas | Hazardous Area Classification

Updated: Jul 1


Zone Classification


Zone 0 :- Harmful & Toxic gases are always present in NORMAL conditions.

(Also known as Brown Field)


Example :- 30 meter radius of live flare


Zone 1 :- Harmful & Toxic gases are occasionally present in NORMAL conditions.


Zone 2 :- Harmful & Toxic gases are present in ABNORMAL conditions.


Example :- In case of live pipe rupture


Unclassified :- Area free from Harmful & Toxic gases


I hope, you understand about Zone Classification.


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