Explosion Proof Room Design Hi All,

I’m hoping to find some guidance on Explosion-Proof room design—not so much in the electrical context as in the mechanical. By this, I mean I want to know what standards exist for the construction of the room (frames, walls, etc), standards for room ventilation, and pressure relief requirements. 

The situation I’m imagining is: a room inside of a warehouse, segregated by several walls and directly vented to the exterior. Other utilities will be plumbed through accordingly.

Any resources or input from experience is welcomed.