All Categories > H-Occupancies/ Hazardous Environments > View Items      Printable Page     Email This Page     Save To Favorites H-Occupancies/ Hazardous Environments Check up to five results to perform an action. larger image We engineer to: NEC Classification (Class, Division) Electrical Requirements per NEC classification Make Up Air and Purging Requirements Access Requirements Preferred Construction Materials (Noncombustible, Fire resistance ratings) We build to customer requirements in the following areas: Size Preferred Building / Room Layout / Location Utilities Ventilation / Filtration Temperature and Humidity Control Alarm Systems Secondary Containment Sound Control Ballistics Explosion Proof   Results Per Page :  25 50 100 200