b.
Commercial Connectors: Quick coupler with non-interchangeable
code key on fitting with color code, automatic valve, and
secondary check valve.
2.1.4.2
Ceiling Hoses
Provide conductive neoprene hoses with color code for appropriate service.
Provide sufficient hose length capable of dropping to within 1.50 meters 4
feet and 8 inches from the floor. Provide chrome-plated, spring loaded,
hose retractor kits to automatically withdraw hose assembly for a minimum of
508 mm 20 inch retraction from the fully extended position of the hoses.
For the upper end of hoses, use female DISS connectors with nuts. For the
lower end of hoses, use commercial connectors for all services except
nitrogen service in which DISS connectors must be used.
**************************************************************************
NOTE: Color coding is secondary to labeling with
DISS number to indicate pipe contents. Just color
coding presents a problem for persons who are color
blind.
**************************************************************************
2.1.4.3
Color Code and DISS Number Requirements
TABLE 1
COLOR CODED CONNECTORS WITH DISS NUMBER
Gas
Color
DISS
Automatic
Secondary
Code
Number
Valve
Check Valve
___
_____
______
_________
____________
Oxygen
Green
1240
Yes
Yes
Nitrous
Blue
1040
Yes
Yes
Oxide
Black
1120
Yes
Yes
Medical Air
Yellow
1160
Yes
Yes
Vacuum
White
1220
Yes
Optional
Anesthesia
Purple
2220
Yes
No
Gas Evacuation
2.1.4.4
Station Outlets and Terminal Units
Provide [DISS] [commercial] non-interchangeable connectors, automatic
valves, secondary check valves (except evacuation outlets and optional for
vacuum terminals), and capped 10 mm 3/8 inch tubing stubs for supply
connections color coded and labeled for the intended services. Rigidly
secure outlets in outlet boxes. Permanently label outlets and terminals
with engraved faceplates or engraved laminated plastic plates color coded
for the intended service.
**************************************************************************
NOTE: Use fixed column ceiling outlets or terminals
SECTION 15217N
Page 17
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