e. Do not tie heating/ventilation/air conditioning return air ducts in with building system. All supply air
to be exhausted to exterior (explosion proof exhaust fan).
Electrical and Mechanical.
a. Recessed lighting fixtures may be used where operationally required. Use surface mounted fixture, for
economy, wherever practical. Fixtures in room 1 should be surface mounted if shielding is applied on
b. In room 10, provide two-hour fire-rated walls and doors. All electrical wiring will meet Class I,
Division II requirements.
c. Environmental control required for the entire facility with maximum relative humidity and temperature
of 50 % and 75 respectively.
d. Include necessary provisions for handling waste materials containing pollutants in drainage system.
a. The following is a list of the typical rooms in the NDI facility:
1. X-ray vault
2. X-ray film processing room
3. X-ray control room
4. X-ray film process room entrance
5. Film viewing room
6. Consolidated equipment room
8. Main inspection bay
9. Training room
9a. Shop stock and storage
10. Oil analysis lab
13. Mechanical equipment room