Definitions for "LOWER EXPLOSIVE LIMIT"
Related Terms:
Lel, Flammable limits, Lfl, Upper explosive limit, Explosive limits, Ufl, Uel, Flammable gas, Flammability limits, Flashpoint, Flash point, Pyrophoric, Flammable, Flashback , Flue gas, Flammability, Combustion air, Flash fire, Autoignition temperature, Secondary air, Flashover, Fugitive emissions, Fire point, Excess air, Primary air, Combustible, Condensate, Vaporize, Flue, Blower, Evaporative emissions, Backdraft, Backdrafting, Bleve, Ignition temperature, Fluidized-bed combustion, Direct vent, Nonflammable, Gas, Vapor lock, Condensing boiler, Burner, Fugitive emission, Air injection, Venting, Flammable liquids, Flaring, Argon, Combustible liquid
Minimum concentration of a chemical in air required for the chemical to ignite.
Lowest percentage, in the air, of an explosive or flammable substance, which can explode or burn.
In relation to a flammable contaminant means the concentration of the contaminant in air below which the propagation of a flame does not occur on contact with an ignition source.
Lower Explosive Limit; the minimum concentration below which combustion will not occur.
The lower limit of flammability of a gas or vapor at ordinary ambient temperatures expressed in percent of the gas or vapor in air by volume. This limit is assumed constant for temperatures up to 120oC (250oF). Above this, it should be decreased by a factor of 0.7 because explosibility increases with higher temperatures.
the minimum concentration of a vapor or gas in air below which it is not possible to ignite the vapors with a proper ignition source.
The lowest concentration at which a gas or vapor is flammable or explosive at ambient conditions.
Minimum concentration of a combustible gas measured as a percentage of the total constituents present in the atmosphere that will combust when ignited.
The concentration of a gas below which the concentration of vapors is insufficient to support an explosion. LELs for most organics are generally 1 to 5 percent by volume. magnehelic gauge: a sensitive differential pressure or vacuum gauge manufactured by Dwyer Instrument Co. that uses a precision diaphragm to measure pressure differences. This gauge is manufactured in specific pressure or vacuum ranges such as 0 to 2 inches of water column. Magnehelic gauges are typically used to measure SVE system vacuums.
the limit below which, the concentration of hydrocarbon gas in the air mixture is considered to be "too lean" ie insufficient hydrocarbon to support and propagate combustion; LEL in short
The lower point for a range of concentrations of organic particles suspended in air that can be ignited by a sufficient energy source. Also called minimum explosive concentration (MEC).
(Also known as Lower Flammable Limit.) The lowest concentration of a substance that will produce a fire or flash when an ignition source (flame, spark, etc.) is present. It is expressed in percent of vapor or gas in the air by volume. Below the LEL or LFL, the air/contaminant mixture is theoretically too "lean" to burn. (See also UEL.) inor Spills Small chemical leaks that usually are detected early and present no immediate danger to personnel or the environment. These are spills that can be safely corrected with the advice of knowledgeable laboratory or supervisory personnel.
Lower Explosive Limit is read from the Combustible gas indicator (CGI). LEL is the minimum amount of airborne chemical that must be present in the air-chemical mixture to make it explosive, see ("flammable (explosive) range".
The minimum concentration of a combustible gas in air which will ignite if a source of ignition is present. Used interchangeably with the term "lower flammability limit" (LFL).
means the minimum concentration of vapour in air at which the propagation of flame occurs on contact with a source of ignition. (Ontario Fire Code 1996)
The Lower Explosive Limit of a flammable gas or vapor (% by volume in air) in which explosion can occur upon ignition in a confined area.
The lower limit of flammability of a gas or vapor. It is usually expressed in percentage of gas or vapor in air by volume.
the concentration of flammable vapors in the air is below a level which will result in a flame, given an ignition source.
See "LEL."
The concentration of a compound in air below which the mixture will not catch on fire.