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AIR CONTAMINANT CONTROL [5 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2013-09-19

English

Subject field(s)
  • Air Conditioning and Heating
CONT

The primary function of an air handling system for any type of clean room is to control the level of airborne contaminant particles by constantly filtering and recirculating the air. The arrangement of a system depends on whether it is to be a conventional clean room, unidirectional vertical or horizontal flow clean room. In the basic form, however, it consists of a fan, ducting for inlet and exhaust air and an air filtration system.

CONT

Because the façades are not airtight, building occupants often block up the fresh-air ducts, thereby interfering with the air circulation system.

Key term(s)
  • air flow system

French

Domaine(s)
  • Conditionnement de l'air et chauffage

Spanish

Save record 1

Record 2 2011-07-22

English

Subject field(s)
  • Pollution (General)
DEF

A term loosely used to designate: 1) the introduction into a medium of a pollutant or of a material which the environment can not handle, degrade or disperse; 2) the presence of pollutants observed in a medium (involving an increase in the volume of materials already present in natural ecosystems, as well as those poisons and chemicals that are not normally present in nature); and 3) the undesirable modification of the composition of a liquid solid or gaseous medium which results from this introduction.

OBS

Pollution is very often used in the more general sense of "environmental pollution". See also that record.

OBS

In water pollution, the term "contamination" is often used as a synonym, as shown by the following definition, taken in source IWATE(Glossary of water and wastewater control engineering, by the American Public Health Association) :"The introduction into water of microorganisms, chemicals, wastes, or wastewater in a concentration that makes the water unfit for its intended use. "However, a distinction should be made between "pollution" and "contamination" : the latter implies a health danger(particularly to humans). Compare "(air) pollutant", "(air) contaminant" and "contamination".

French

Domaine(s)
  • Pollution (Généralités)
DEF

Introduction ou présence dans un milieu d'une substance ou d'un facteur biologique, chimique ou physique qui provoque une altération de l'environnement ou qui entraîne une nuisance. Aussi : cette altération. Par exemple : pollution bactérienne, pollution nucléaire, pollution par le bruit, pollution des aliments (par les pesticides et les additifs alimentaires).

OBS

nuisance : ce terme se rapporte au désagrément causé par cette introduction, même s'il s'agit d'une quantité très faible d'une substance et donc non véritablement polluante (p. ex. odeur) ou d'un état physique de l'environnement (p. ex. bruit, température), lorsqu'elle provoque une gêne pour celui qui le perçoit.

OBS

pollution : terme normalisé par l'AFNOR.

OBS

Voir les fiches «contaminant (de l'air)», «polluant (de l'air)», et «contamination».

Spanish

Campo(s) temático(s)
  • Contaminación (Generalidades)
DEF

Alteración de alguno de los elementos necesarios para la vida, tierra, agua o aire, o perturbación sobre los seres vivos que se origina como consecuencia de dicha alteración.

Save record 2

Record 3 2003-10-28

English

Subject field(s)
  • Flight Instruments and Equipment (Aeroindustry)
  • Air Conditioning and Heating
DEF

Device which absorbs or adsorbs various odors, usually by principle of absorption.

OBS

Activated charcoal is commonly used.

CONT

moisture/air contaminant control : That portion of the system used to control moisture in the air, to control ozone concentrations, to filter radioactive debris from conditioned air, and to treat the air with deodorizers, insecticides, etc.

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Conditionnement de l'air et chauffage
CONT

régulation de l'humidité et de la contamination de l'air : Partie du système servant à réguler l'humidité de l'air, et la concentration d'ozone, à filtrer les déchets radioactifs de l'air conditionné et à assainir l'air à l'aide de désodorisants, insecticides, etc.

Spanish

Campo(s) temático(s)
  • Instrumentos y equipo de vuelo (Industria aeronáutica)
  • Acondicionamiento de aire y calefacción
DEF

Producto o equipo que provoca narcosis del nervio olfativo.

Save record 3

Record 4 1981-01-30

English

Subject field(s)
  • Air Conditioning and Heating
OBS

Moisture/Air contaminant control. That portion of the system used to control moisture in the air, to control ozone concentrations, to filter radioactive debris from conditioned air, and to treat the air with deodorizers, insecticides, etc.

French

Domaine(s)
  • Conditionnement de l'air et chauffage
OBS

Régulation de l'humidité et de la contamination de l'air. Partie du système servant à réguler l'humidité de l'air, et de la concentration d'ozone à filtrer les déchets radioactifs de l'air conditionné et à assainir l'air à l'aide de désodorisants, insecticides, etc.

Spanish

Save record 4

Record 5 1981-01-30

English

Subject field(s)
  • Flight Controls (Aeroindustry)
OBS

Moisture/Air contaminant control. That portion of the system used to control moisture in the air, to control ozone concentrations, to filter radioactive debris from conditioned air, and to treat the air with deodorizers, insecticides, etc.

French

Domaine(s)
  • Commandes de vol (Constructions aéronautiques)
OBS

Régulation de l'humidité et de la contamination de l'air. Partie du système servant à réguler l'humidité de l'air, et de la concentration d'ozone, à filtrer les déchets radioactifs de l'air conditionné et à assainir l'air à l'aide de désodorisants, insecticides, etc.

Spanish

Save record 5

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