What is the occupancy hazard classification of corridors in Group H-5 occupancies?

In Group H-5 occupancies, which are typically facilities that deal with high-hazard materials processing, such as certain types of laboratories and chemical processing plants, the occupancy hazard classification of corridors is categorized as Ordinary Hazard Group 2. This classification is based on the nature of the occupancy and the potential fire hazards associated with the materials that may be present in such environments.

Corridors in these types of facilities can facilitate the movement of personnel and materials, but they are also subject to conditions that might not be as hazardous as areas directly involved in high-risk activities. Ordinary Hazard Group 2 reflects this position, indicating that while these corridors may face some level of risk, it is not as elevated as what would be found in areas classified under Extra Hazard ratings. This understanding is crucial for various code requirements and safety standards that apply to building design and fire protection measures in such settings.

The other classifications do not accurately reflect the risk levels present in Group H-5 corridors, which is why they are not the correct choices.