ACCESSIBLE
Having access to but which may require the removal of a panel, door, or similar covering of the item described.
ACCESSIBLE, READILY
Having direct access without the need of removing or moving any panel, door, or similar covering of the item described.
AGA
American Gas Association
API
Acceptable to the authority having jurisdiction
ASA
American Standards Association
ASME
American Society of Mechanical Engineers
ASME CONTAINER
A container constructed in accordance with ASME Code.
ASTM
American Society for Testing and Materials
AUTHORITY HAVING JURISDICTION
The authority having jurisdiction is the organization, office or individual responsible for “approving” equipment, an installation or a procedure.
BRITISH THERMAL UNIT (BTU)
A measurement of heat energy which is the quantity of heat required to raise the temperature of 1 pound of water 1 degree Fahrenheit.
BTU RATING
The maximum BTU input to an appliance in an hour’s time.
BUTANE
One of the hydrocarbon gases which is a member of the LP-Gas group.
CENTIGRADE
A scale of measuring temperatures
COMBUSTION
The rapid combination of a substance, usually a hydrocarbon fuel, with oxygen to produce heat and/or light, or both.
CONTAINER
The term includes all vessels, tanks, cylinders, or drums used for the transportation and storage of LP-Gas.
CRUDE OIL
Oil as it comes from an oil well.
CYLINDER
A portable container constructed to DOT cylinder specifications or, in some cases, constructed in accordance with the ASME code of a similar size and for similar service; the maximum size specified under DOT specification is 1,000 lb. water capacity.
CYLINDER CAP
A device which fits over the cylinder valve and is screwed into the threaded boss which is welded into the cylinder; it provides the cylinder valve from damage or from being broken off in case the cylinder should fall over and strike an object.
DIRECT VENT APPLIANCES
Appliances that are constructed and installed so that all air for combustion is derived directly from the outside atmosphere and all flue gases are discharged to the outside atmosphere.
DISPENSING
The transfer of LP-Gas into the fuel tanks of motor vehicles, farm tractors, material handling equipment and similar equipment.
DISTRIBUTOR
Generally this term refers to a wholesaler of LP-Gas who purchase from the producers and resell to dealers.
DOT
U.S. Department of Transportation
DRAFT HOOD
A fitting or device placed in, and made a part of the flue pipe from an appliance, or in the appliance itself.
ENGINE CONVERSION
Converting an internal combustion engine from a liquid fuel to LP-Gas.
GALLON
A measure of capacity.
GAS ENGINE
An internal combustion engine designed and/or equipped to operate on a gaseous fuel.
GAS REFRIGERATOR
A refrigerator using the absorption process and a small gas flame to furnish the heat to separate the refrigerant from the absorption medium.
INCHES OF WATER COLUMN (”W.C.)
A unit of pressure measurement equivalent to 0.0361 psi
INLET PRESSURE
The pressure at the inlet side of a regulator, pump, emeter or entrance to a system or process cycle.
INSTANTANEOUS WATER HEATER
A water heater that heats water as it passes through a coil whenever the water is drawn.
KILOWATT
A unit of electric power equivalent to 1,000 watts or 3,412 BTU
LEFT HAND THREAD
A thread which tightens by turning counter-clockwise when observed in the same direction of travel as the turning piece travels while tightening.
LIQUID LEVEL INDICATOR
A fixed liquid level, a rotary, a magnetic, or other type of gauge which will indicate the quantity or level of liquid in a container.
LPG
Liquefied petroleum gas
METER
A device for measuring flow of fluids.
METER INDEX
The indicator that shows the number of units of volume that have passed through the meter.
METHANE
Its chemical formula is CH4 and is the main constituent of natural gas and SNG.
NATURAL GAS
The term applied to gases commonly associated with petroliferous geologic formations.
NFPA
National Fire Protection Association.
ORIFICE
An aperture designed to accurately control the flow of gas to a burner.
PIGTAIL
A copper or reinforced synthetic rubber tube connector used to connect the service vessel to the regulator or a manifold.
POINT OF TRANSFER
The location where connections and disconnection are made or where LP-Gas is vented to the atmosphere in the course of transfer operations.
REGULATOR
A device used to reduce the pressure of a gas or liquid from a higher pressure to a lower, controlled pressure.
RELIEF DEVICE
A device used to prevent a dangerous condition of pressure, or temperature, from occurring in an enclosed space.
SKID TANK
Refers to a portable or semi-portable tank used to transport or store LP-Gas.
SNG
Synthetic Natural Gas
SOURCES OF IGNITION
Devices or equipment that, because of their modes of use or operation, are capable of providing sufficient thermal energy to ignite flammable LP-Gas vapor-air mixtures when introduced into such a mixture or when such mixture comes into contact with them, and which will permit propagation of flame away from them.
STANDY-BY GAS
A reserve gas supply used to augment or replace the gas ordinarily used.
STORAGE TANK
A large container in which LP-Gas is stored in a liquid phase.
TARE WEIGHT
The weight of the container only.
THERM
A unit of heat measurement equal to 100,000 BTU.
UBC
Uniform Building Code
UFC
Uniform Fire Code
UPC
Uniform Plumbing Code
VAPOR PRESSURE
Refers to the pressure developed over a liquid in a closed container.
