DG 1110-3-106
Table 4-12 Criteria for a Technical Library.
Space Criteria
preference: paragraph 3-5
Area
8 ft. for stacks
Ceiling Height
125 psf
Floor Loading
Environmental
Thermal
Temperature, maintained operation
Relative humidity
Outside air required/person
Air changes
Air movement
Air pressure
Air filtration efficiency
Lighting
30 fc. (maintained)
General lighting level
70, reference: IES Lighting Handbook Applications
Visual comfort probability
Volume
Absorptive, NRC 50 (minimum)
Surface reflectance: Ceiling
Absorptive, NRC 25 (minimum)
Floor
Yes
Daylighting
North or south
Window orientation
STC 45
Enclosing sound wall rating
Absorptive
Sound reflectance: Ceiling
Absorptive
Floor
Service Criteria
Electrical
110/120 V
Power
Telephone/intercom clock control as programmed
Signal (low voltage)
Special Criteria
See DG 1110-3-110, Chapter 12
Security Vault (as required)
4-63
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