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 Facilities Glossary

As our industry changes we are constantly encountering new terms and concepts. We add them here to help you stay current on industry lingo. If you encounter a new term that does not appear here, please Contact Us so that we can research and add it.

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Terms Beginning with 'E'

e-Business

"e-Business" is a communication process that makes use of Internet technologies to execute business transactions between many users. Applied to the arena of facilities management, emerging e-business models focus on providing users with self-help tools th...
 2.3.04



Earthing

A grounding electrical conductor....
 1.22.04



EBTR

See Emergency Building Temperature Regulations...
 7.22.03



Echo Canceller

A device that blocks echo reflections during a conference while one person is speaking....
 4.21.05



Echo Suppressor

An echo-control device that switches off the transmission path from the listening party to the talking party, thus blocking echo reflections....
 4.21.05



Economic Value Added (EVA)

A financial calculation of operating profits less the cost of all capital employed to produce those profits. EVA includes the cost of capital, so if profits cannot out-produce the cost of capital, as well as the investment cost, the investment does not g...
 9.9.09



Economizer Water

A system which uses either direct evaporative cooling, or a secondary evaporatively cooled water loop and cooling coil to satisfy cooling loads, even if additional mechanical cooling is required. (copyright California Energy Commission, glossary of energy...
 3.24.08



Economy Energy

Electricity purchased by one utility from another to take the place of electricity that would have cost more to produce on the utility's own system. (copyright California Energy Commission, glossary of energy terms)...
 3.24.08



Effluent

A liquid waste discharge from a manufacturing or treatment process. The waste may be untreated, partially treated or completely treated before discharge into the environment....
 12.29.04



Effluent Limitations

Restrictions set by a regulating agency on concentrations, quantities and rates of wastewater discharges....
 4.21.05



EIR

See Environmental Impact Report. ...
 4.21.05



EISA

See Extended Industry Standard Architecture. ...
 4.21.05



Elastomer

A material that cures to a synthetic rubber material capable of returning to its original dimensions after tensile or compressive forces are applied, within limits of the material's yield strength. Also called Elastomeric, Elastic Sealant....
 4.21.05



Electrical Metal Tubing (EMT)

Conduit for wiring....
 9.9.09



Electromagnetic Interference

Radio frequency emission from electronic devices which is radiated or conducted outside the device where it disturbs the operation of other electronic equipment. EMI also designates the degradation of electronic equipment performance caused by the presenc...
 3.6.09



Electron Microscopy

Research with the use of electron microscopes. Microscopy using a beam of highly energetic electrons to examine objects on a very fine scale to determine topography, morphology, composition, and crystallographic information. ...
 3.15.04



Electron Paramagnetic Resonance

Microwave spectroscopy in which there is resonant absorption of radiation by a paramagnet. ...
 1.29.04



Electronic Blackboard

A communications device that has the appearance of a normal chalkboard but in fact is an electronic transponder that converts handwriting on the board's surface into digital signals. The signals can be transmitted over a normal telephone line and reco...
 4.21.05



Electronic Mail

The lack of face-to face contact and the permanency of electronic mail or e-mail requires a different communication style than telephone or face-to-face interactions. The Rand Corporation recommends the following to help e-mail users communicate more effe...
 4.21.05



Electrowriter

A communication system for sending handwritten information over a telephone line. The sender writes on a special pad, and the receiver then sees the writing appear on a piece of paper or on a projection screen....
 4.21.05



ELF

See Equivalent Lineal Feet....
 4.21.05



Ellipsometer

Measures the refractive index and the thickness of semi-transparent thin films. The instrument relies on the fact that the reflection at a dielectric interface depends on the polarization of the light while the transmission of light through a transparent ...
 1.29.04



Emergency Building Temperature Regulations (EBTR)

Heating and cooling setpoints regulated in response to past oil embargoes....
 9.9.09



EMP

See Environmental Master Plan....
 7.22.03



Encryption

The coding or scrambling of a signal for secure transmission. The information must be decoded at the receiving site. Can be used for voice, video, and other communication signals....
 4.21.05



Endemic

A disease is endemic when it is restricted to a specific region or population and is present at all times. The prevention and control of disease is of prime concern in the design of animal facilities. See also Epidemic, Epizootic....
 7.24.01



Energy Policy Act (EPACT)

Established by the United States' federal government in 1992 to impose stringent standards for quality and compliance of nearly everything that affects the environment. ...
 9.9.09



Energy Recovery

Obtaining energy from waste through a variety of processes (e.g., combustion)....
 4.21.05



Energy Units

Energy is the capability to do work (i.e., water stored at high elevation, a moving flywheel, a combustible liquid). Energy units are the same as work units: BTU, joules, kilowatt-hours, foot-pounds. 3,400 BTU = 1 kilowatt-hour. A gallon of gasoline conta...
 5.5.03



Engineering Controls

Machinery or equipment that reduce or eliminate exposure to a hazard, e.g. a chemical fume hood....
 12.2.03



Enrichment

In the laboratory animal care field, the mental state of the animal, their psychological well-being, is taken into consideration by the providing for their needs other than food, water and shelter....
 3.6.03



Enterprise Resource Planning (ERP)

A business management system that integrates all facets of the business, including planning, manufacturing, sales, and marketing. As the ERP methodology has become more popular, software applications have emerged to help business managers implement ERP in...
 9.9.09



Enthalpy

Actual heat content. In HVAC systems, often refers to heat recovery from exhaust air or heat-generating equipment....
 4.21.05



Entomology

Zoology that deals with insects. ...
 8.1.03



Environmental Audit

An independent assessment of the current status of a part's compliance with applicable environmental requirements or of a party's environmental compliance policies, practices and controls....
 4.21.05



Environmental Impact Report (EIR)

The report based on intensive study of the implications of a building project on the environment: air, wildlife, erosion, soil, noise, etc. ...
 9.9.09



Environmental Master Plan (EMP)

A plan that identifies existing environmental issues and areas of compliance and non-compliance. This plan has the determination of priority and cost of compliance, identifies energy-saving opportunities, and evaluates building systems, the physical plant...
 9.9.09



Environmental Protection Agency (EPA)

The mission of the U.S. Environmental Protection Agency (EPA) is to protect human health and to safeguard the natural environment--air, water, and land--upon which life depends. (www.epa.gov)...
 9.9.09



Environmental Tobacco Smoke (ETS)

Smoke generated by those persons smoking tobacco products....
 9.9.09



EPACT

See Energy Policy Act....
 7.22.03



EPDM Membranes

Ethylene Propylene Diene Monomer membranes. This single-ply roofing material is formed by mixing EPDM polymer (a sticky black substance) with oils and carbon black, as well as a number of other materials. EPDM membranes have good weatherability, elas...
 4.21.05



Epidemic

The prevalence in a community of a disease that has been brought in from elsewhere, or an increase in the prevalence of an endemic disease. See also Endemic, Epizootic....
 7.24.01



Epidemiology

The field of science that deals with the cause, study and control of epidemics and outbreaks of communicable diseases as well as diseases caused by chemicals and other environmental factors....
 4.21.05



Epigenetics

Epigenetics is a term in biology used today to refer to features such as chromatin and DNA modifications that are stable over rounds of cell division but do not involve changes in the underlying DNA sequence of the organism. These epigenetic changes play ...
 12.19.07



Epistitial Space

Utility distribution on the outside of a building, rather than in between floors or in the ceiling. See also Interstitial Space....
 7.25.01



Epitaxial

The growth of crystalline materials. Such science requires a specially built facility....
 1.22.04



Epitaxy

The growth of the crystals of one mineral on the crystal face of another mineral, such that the crystalline substrates of both minerals have the same structural orientation. ...
 1.20.04



Epizootic

A severe disease that periodically affects a significant number of animals in a population. See also Epidemic, Endemic....
 7.24.01



Epoxy

Any of various usually thermosetting resins capable of forming tight cross-linked polymer structures characterized by toughness, strong adhesion, and low shrinkage, used especially in surface coatings and adhesives. Currently, the most common finish used ...
 12.8.03



Equivalent Lineal Feet (ELF)

The length of floor space occupied by permanent apparatus (such as hoods and lab benches) and moveable items used on a regular basis (such as carts and refrigerators). ELF is a measure of usable work area used as an architectural programming guide or a me...
 9.9.09



Ergonomics

Human factors in a work situation (erg = work, nomics = study of). The science of human manipulative use of equipment and machinery. As applied to the office environment, it is the study of how people use seating, work space, communication devices, li...
 4.21.05



Ethernet

The most widely used local area network technology....
 4.21.05



Etiological Research Facility

A facility dedicated to research and study relative to the cause or causes of disease....
 4.21.05



Etiology

The cause of a disease or any condition. Disease prevention and control is of prime interest in the design of animal facilities....
 2.26.07



ETS

See Environmental Tobacco Smoke...
 7.22.03



EVA Fields

Electromagnetic, vibration, and acoustic (EVA). Some machinery generate EVA fields....
 7.22.03



Excess Insurance

Provides a higher limit of coverage than that provided by a primary insurance policy. Excess insurance goes into effect when the loss exceeds the limit of the primary insurance....
 4.21.05



Exoskeleton

Regarding building shells, a building type in which all vertical structural members, utilities and drains are located within the outside double walls of the building envelope. The advantage of this plan is that it affords great flexibility in the use ...
 4.21.05



Expansion Joint

A joint or gap between adjacent parts of a building, structure, or concrete work which permits its relative movement due to temperature changes without rupture or damage. (Dictionary of Architecture and Construction © 1993, 1975 McGraw Hill Inc.)...
 7.24.01



Explosive Limit

 The amounts of vapor in the air that form explosive mixtures; the limits give the range of vapor concentrations that will explode if an ignition source is present. ...
 4.21.05



Extended Industry Standard Architecture (EISA)

An internal connection scheme for communication within a computer. Also referred to as a communication bus....
 9.9.09



Extended Services Construction Management

An organization and contractual approach to construction management in which the construction manager is cast in a dual role as either AE/CM or CM/contractor or constructor when initial services are expanded to include additional responsibilities. See...
 4.21.05



eXtensible Markup Language (XML)

A language, written in text format, that makes data portable over the Web, and allows it to be displayed in a variety of formats. It is more powerful and flexible than HTML (hyper text markup language), and contains data and definitions of how data is to ...
 9.9.09



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