Cincinnati Children's Hospital Lab Furnishings Catalog
Lab Design Guidelines
General Plumbing Details
Minimum Spacing Between Fixtures The drawing below shows the allowable minimum spacing between service fittings on laboratory bench top.
4 1/2” (11.4 cm)
7” (17.8 cm)
9” (22.9 cm)
10 1/2” (26.7 cm)
12” (30.5 cm)
7” (17.8 cm)
Service and Rough-In Designations and Color Coding
Recommended Supply Line Pressures
Designation
Service
Color
Service
Pressure
E
Electric (120 Volt AC)
-
Hot and Cold Water
Local Pressure
DT
Data
-
Gas
0.216 psi
A
Air
Orange
Air (Ordinary)
15 psi
G
Gas
Dark Blue
Air (Air Powered Stirrer Operation)
40 psi
V
Vacuum
Yellow
Vacuum (Ordinary)
15”-22” of Mercury
N
Nitrogen
Brown
Vacuum (High)
28.5” of Mercury
O
Oxygen
Light Green
Steam (Low Pressure)
0-15 psi as required
S
Steam
Black
Steam (High Pressure)
15-30 psi as required
CW
Cold Water
Green
HW
Hot Water
Red
DW Distilled Water
White
W
Waste
-
WV
Waste Vent
-
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