KKK-A-1822 E
3.12
OXYGEN AND SUCTION SYSTEMS AND EQUIPMENT.
The ambulance manufacturer, as required, shall furnish devices/equipment under 3.12 through
3.12.4 complying to this specification or to other Medical Associations approved standard(s)
(e.g. ASTM). The specified device shall be tested and certified by an independent, medical
testing laboratory for EMS use.
3.12.1 OXYGEN, MAIN SUPPLY AND INSTALLATION.
The ambulance shall have a hospital type piped medical oxygen system capable of storing and
supplying a minimum of 3,000 liters (see cylinder data 6.7) of medical oxygen. Unless otherwise
specified (see 6.2-kk for additional sizes or aluminum or composite bottles), the main oxygen
supply shall be from a single "M" size cylinder which consignee will provide and install at the time
the vehicle is placed in service. Cylinder(s), when furnished, shall conform to Federal Specification
RR-C-901, DOT Specification 3AA2015 and MS-39226-8. Unless otherwise specified by the
purchaser (see 6.2-kk), the oxygen cylinder shall be located in an area that provides for proper
balance and weight distribution (see Paragraph 3.5.4).
The cylinder controls shall be accessible from the inside and outside of the vehicle. The bottle
pressure gauge or equivalent device shall be visible from the EMT's seat and/or the squad
bench. The oxygen bottle shall be accessible for changing from the exterior of the body and, on
Type II vehicles, through a sealed door. Access to the bottle, when located under the squad
bench, shall also be through the rear half of a two section, squad bench cover.
If necessary, or when specified (see 3.15.4 M8), a remote bottle pressure indicator, such as
a multi-light indicator showing "Full", "3/4", "1/2" and "1/4", and "Empty" or a digital
indicator or other analog type that displays bottle capacity, in at least 25 percent increments,
shall be furnished and mounted on the EMT panel. Systems with audible alarms shall have
a resetable, audible alarm that sounds when the capacity is down to 20-25 percent. A
shutoff valve or solenoid, when specified, shall be furnished in the 344 kPa (50 psi) line,
and shall be located on the EMT panel. If a solenoid is utilized, a readily accessible,
emergency bypass valve shall be furnished and identified. The purchaser shall specify the
type of quick disconnect, action wall device (see 6.2-ll) to be used to interface the flow
meter and oxygen powered, manually triggered (resuscitator) valve (see 3.15.4 M7 and
M20). E.g. DISS, NCG, or an Ohmeda type connector.
A cylinder changing wrench shall be furnished, chained, and clipped within the oxygen
cylinder compartment. The contractor shall install all other components and accessories
required for the piped oxygen system which shall include, but not be limited to: a pressure
regulator preset to 344 +/- 34 kPa (50 +/- 5 psi) line pressure, non-ferrous piping and/or
low pressure, electrically conductive, hose approved for medical oxygen at the flow rate
specified in 3.12.1.1. INDUSTRIAL OR WELDING TYPE OXYGEN HOSE SHALL
NOT BE USED. Oxygen piping shall be concealed and not exposed to the elements,
securely supported to prevent damage, and be readily accessible for inspection and
replacement. Oxygen shall be piped to a self-sealing duplex oxygen outlet station for the
primary patient and, when specified (see 3.15.4 M9), for the secondary patient. Oxygen
outlet shall be located within 89 cm (35") from the center of the patient's head when in the
supine position with the cot located in the position closest to the action wall. One of the
outlets shall be for a flow meter/humidifier, and the second oxygen outlet shall be used for
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