| Webster's Online Dictionary |
| Expressions | Definition | ||
| Explosive limit | The explosive limit of a gas or a vapour, is the limiting concentration (in air) that is needed for the gas to ignite and explode. There are two explosive limits for any gas or vapor, the lower explosive limit (LEL) and the upper explosive limit (UEL). At concentrations in air below the LEL there is not enough fuel to continue an explosion; at concentrations above the UEL the fuel has displaced so much air that there is not enough oxygen to begin a reaction. Concentrations of explosive gases are often given in terms of percent of lower explosive limit (%LEL). (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||
| Expressions | Domain | Definition | |
| Explosive limit | Mining | The limits of percentage composition of mixtures of gases and air (or oxygen) within which an explosion takes place when the mixture is ignited. (references) | |
| Lower Explosive Limit | Environment | The concentration of a compound in air below which the mixture will not catch on fire. (LEL). (references) | |
| Upper explosive limit of flammability | Mining | The highest quantity of combustible gases that, when mixed with a given quantity of air (or oxygen), will just support a self-propagating flame. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
