Areas like hydrogen generation rooms, hydrogen purification chambers, hydrogen compressor rooms, and hydrogen bottling areas, known for their explosive nature, are designated as Zone 1.
Considering measurements from the perimeters of doors and windows in these rooms, the area extending to a 4.5-meter radius on the ground is identified as Zone 2.
When considering the hydrogen venting points, the spatial area within a 4.5-meter radius and up to a height of 7.5 meters from the top falls under Zone 2 classification.
