COMPARISON OF ZONES & DIVISIONS
Classified
area
Z0
D1
Z1
Z2
D2
Time that haz. gases are present in ignitable
Estimated % (Divisions)
Estimated % (Z)
Continuously
Normally present
Occasionally in normal operations
Not normally present
ɝ%
ᢗ%
ɚ%
ᡴ%
ម%
Previous slide
Next slide
Back to first slide
View graphic version