Knowledge Base Glossary
Glossary is usually defined as an alphabetical list of technical terms in some specialized field of knowledge. This knowledge base glossary provides a collection of knowledge base documents that define many technical terms. These terms are arranged alphabetically, but you can quickly jump to a specific term by selecting its first letter from the index of the knowledge base glossary below.
16 Glossary Terms Found
EDI
EDI stands for Electronic Data Interchange. It’s a generic term that refers to the systems and processes that retailers have in place for sending orders and receiving stock.
Elastic Limit
The limiting extent to which a body may be deformed and yet return to its initial shape after removal of the deforming force.
Elastohydrodynamic Lubrication (EHD)
A lubricant regime characterized by high-unit loads and high speeds where the mating parts, usually in roller bearings, deform elastically, causing an increase in lubricant viscosity and load-carrying capacity.
Elastomer
An elastic rubber-like material which, in the vulcanized state and at room temperature, can be stretched repeatedly to at least twice its original length. Upon release of the stress, this material will immediately return to approximately its original length.
Elongation
The increase in length expressed numerically as a fraction or percentage of the initial length.
Emissions
Gaseous or liquid leakage given off by a piece of equipment. This usually refers to volatile organic hydrocarbons monitored by government agencies. It is typically expressed in parts per million volumetric (ppmv, or simply ppm).
End Play
A measure of axial movement encountered or allowed, usually in reference to the shaft on which the seal lip contacts.
EPA
Abbreviation for "Environmental Protection Agency", the US government agency responsible for enforcing the regulations imposed by the Clean Air Act Amendment.
EPA Method 21
A method established by the EPA for performing emissions measurements on equipment such as valves, pumps, and flanges.
EPDM
ethylene propylene diene monomer. A unique rubber construction that provides improved performance and heat resistance.
Etching
Rusting with pitting and corrosion from moisture and water exposure.
Evaporation Loss
The portion of a lubricant that evaporates under the effects of temperature, pressure and time.
Exclusion Device
A device capable of excluding contaminating particles and fluids that would otherwise be dragged back into the primary sealing area of the equipment.
Expansion
The increase in any linear dimension or volume.
External Arch Corner
An expansion joint corner with the arch formed outwardly that is designed primarily for pressure service, generally used in conjunction with a rectangular or square expansion joint.
Extraction Test
A test involving the separation of certain components from a solid by dissolving them in a liquid solvent under suitable conditions.