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Green SC


Yellow, NF/SC

Carbon Dioxide

Gray, NF


Black, NF


Brown, NF

Nitrous Oxide

Blue, SC


Red, F


Orange, F

Nitric Oxide

Brown w/ buff color band, NF/Sc

Oxygen/Carbon Dioxide

Grey Sholder/Green Body


Green Sholder/black body


Green shoulder/brown body

DOT Department of Trasportation

provides regulations for manufacturing, storage and transportation of medical gases

FDA Food and Drug Administration

Sets purity standards for medical gases

CGA Compressed Gas Association

comprises companies involved in manufacturing, storage, and transport of medical gases

NFPA National Fire Protection Association

provides incormation on fire protection safety

z-79 Committee

Establishes standards for anesthetic and ventilatory devices, including anesthetic machines, tracheal tubes, humidifiers, nebulizers and other oxygen related equipment

E cylinder Conversion/Tank factor

0.28 616 liters

H Cylinder Conversion/Tank Factor

3.14 6900 Liters

Piss Index system

used on the valve of small cylinders (a-e)

pin holes for Air

1 and 5

pin holes for Oxygen

2 and 5


Large cylinder (g,h, k) valve outlets and connections


Uses non-interchangeable threaded fitting

Quick Connect

Flowmeter attached to a wall outlet

what are the specifications outlined by the NFPA on Bulk oxygen storage

have the names of the gases posted, keep full and empty cylinders apart, be in a dry, cool well ventilated area, keep cylinders on a platform above ground if storage is outside, do not store flammable gases with oxygen

Guidelines when transporting and using cylinders

leave valve caps in place, don't lift by the cap, don't drop or strike anything against the cylinder surface, don't drag or slide, use a cart for loading unloading and transport

procedure when preparing a gas cylinder for use

check for dents or damage, be sure cap in place, be sure cylinder is secured to cart, take off cap, crack valve to get out dust/depress (give warning of loud noise) attach regulator

what is the advantage of storing oxygen in a liquid form

it is less expensive it takes up less space

what is the purpose of zone valves

to isolate areas independently if maintenance is required or fire occurs

what are the two functions of a gas regulator

regulate gas flow reduce pressure to working pressure

Reducing valves single stage

reduces cylinder pressure to 50 psig has one safety relief device

Reducing valve double stage

reduces cylinder pressure to appr 200 pig the to 50 psig, has two safety relief devices

reducing valve triple stage

reduces cylinder pressure to 300 then 200 then 50 psig has three safety relief devices

preset regulator

the spring tension is preset to 50 psig

adjustable regulator

the spring tension is adjustable by the user example is Bourdon gauge

Bordon Gauge

a pressure gauge that has been calculated in liters per min

how can you tell if a gage is a Bourdon gage

it does not compensate for back pressure, readings are higher when has back pressure

what is an advantage of the bourdon gauge

it is not position dependent making it ideal for transport

Uncompensated flow meters

the needle valve is before the float, any back pressure in the tube effects the float,

comensated flow meters

the needle valve is after the float, only back pressure exceeding 50 psig will rise the float

how do you tell if a flowmeter is pressure commpennsatedd

needle valve is after the float, float jumps when plugged into wall outlet while turned off, its labeled compensated

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