TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

It was established by Lord Kelvin that the vapour pressure over the surface of a water drop in equilibrium with its surroundings is greater that over a plane water surface. This vapour pressure difference is inversely proportional to the radius of the drop. The vapour pressure over a drop is then greater than the saturation vapour pressure for the liquid concerned, since the saturation vapour pressure is defined as that over a plane surface.  3, record 1, English, - plane%20water%20surface

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Soft rime is a white ice deposition that forms when the water droplets in light freezing fog or mist freeze to the outer surfaces of objects, with calm or light wind... Soft rime formations have the appearance of white ice needles and scales; they are fragile and can be easily shaken off objects. Factors that favour soft rime are small drop size, slow accretion of liquid water, high degree of supercooling, and fast dissipation of latent heat of fusion.  2, record 2, English, - soft%20rime

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Le givre mou est un dépôt fragile composé surtout de fines aiguilles ou d'écailles de glace. Au sol ou près du sol, il se dépose par vent calme ou faible sur toutes les faces des objets exposés. Le givre mou tombe facilement des objets lorsqu'on secoue ceux-ci.  2, record 2, French, - givre%20mou

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

Deep ocean storage includes direct injection of liquid carbon dioxide into the water column at intermediate depths(1000-3000 m), or at depths greater than 3000 m, where liquid CO₂ becomes heavier than sea water, so it would drop to the ocean bottom and form a so-called "CO₂ lake. "  3, record 3, English, - ocean%20storage

Record number: 3, Textual support number: 1 OBS

Not to be confused with "ocean sequestration." The term "ocean storage" refers to the injection of CO₂ into the ocean while "ocean sequestration" includes the injection of CO₂ as well as other methods for enhancing the ocean’s CO₂ uptake. However, some authors consider the two terms to be synonyms.  4, record 3, English, - ocean%20storage

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Le stockage océanique consiste en un rejet direct dans la colonne d'eau de l'océan ou les fonds marins profonds. [Dans les fonds marins,] le CO₂ plus dense que l'eau devrait former un lac qui retarderait sa dissolution dans le milieu ambiant.  2, record 3, French, - stockage%20oc%C3%A9anique

Record number: 3, Textual support number: 1 OBS

Ne pas confondre avec «séquestration océanique». Le terme «stockage océanique» désigne l'injection de CO₂ dans l'océan alors que la «séquestration océanique» comprend l'injection de CO₂ ainsi que d'autres méthodes favorisant l'absorption de CO₂ par les océans. Cependant, certains auteurs considèrent les deux termes comme étant synonymes.  3, record 3, French, - stockage%20oc%C3%A9anique

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

On forcing a cell suspension at high pressure through a narrow orifice, the rapid pressure drop provides a very powerful means of disrupting the cells. In practice it is simple to design equipment to subject the cell suspension to shear forces before releasing the pressure. By changing the pressure applied, cells may be disrupted completely or only sufficiently to release periplasmic enzymes.... [Experimentors have] used a liquid shear system for the disruption of chloroplasts. The suspension was passed through a needle valve at pressures up to 20, 000 p. s. i. and a flow rate of 10 ml/min. Under these conditions, rupture of E. coli was indicated by an increase in glutamic acid decarboxylase activity.  2, record 4, English, - liquid%20shear

Record number: 4, Textual support number: 1 OBS

In practical terms liquid shear is associated with the generation of heat. As a result subsequent increases in the temperature of the suspension of up to 40 °C may be encountered. Cell suspensions must, therefore, be introduced to the apparatus at 0-4°C to minimise loss of enzyme activity. If recycling is used then cooling before re-entry is essential. Equally, with this type of equipment the best results are obtained by using a homogeneous cell suspension. Irregular particle sizes owing to filamentous or pelleted growth modes reduce the efficiency of cell breakage.  3, record 4, English, - liquid%20shear

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Appareil permettant de provoquer la lyse des cellules ou des organites, cellulaires. Les cellules sont placées dans un liquide sous pression d'azote pendant un temps suffisant pour équilibrer les pressions extra-et intracellulaires, puis le liquide est décompressé en passant par une valve étroite, ce qui provoque la rupture des cellules.  1, record 4, French, - bombe%20%C3%A0%20azote

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

One of the many particles of water, either a cloud drop of liquid water or an ice crystal which form a cloud.  2, record 5, English, - cloud%20particle

Record number: 5, Textual support number: 1 CONT

In order for a cloud particle (water droplet or ice particle) to fall as precipitation it must grow to a minimum size. One of the growth mechanisms of water droplets is by the condensation of water vapor onto the surface of the droplet. Ice particles can grow in a similar fashion by the condensation and subsequent freezing of water vapor (riming), or the direct deposition of water vapor onto the particle.  1, record 5, English, - cloud%20particle

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Une des particules d'eau soit une goutte d'eau liquide ou un cristal de glace, qui forment un nuage.  3, record 5, French, - particule%20de%20nuage

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 OBS

Due to the drop in pressure that occurs in high-pressure liquid chromatography(HPLC) as the solvent passes from the column to the detector, any dissolved gases(most commonly air) are partially released as bubbles within the detector, producing anomalous and misleading results. To avoid this problem, solvents are degassed before use, either by a nitrogen purge or by heating and stirring under vacuum.  2, record 6, English, - degassing

Record 6,  Textual support,  French

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

A two-story combination sewage sedimentation and sludge digestion facility, usually constructed of reinforced concrete. The top story is the sedimentation compartment, and the bottom story is the sludge digestion compartment. The incoming sewage flows slowly and continuously through the settling compartment... and settleable solids carried by the liquid drop down through a trapped slot and form the sludge deposit in the sludge digestion compartment below.  5, record 7, English, - Imhoff%20tank

Record number: 7, Textual support number: 1 CONT

The Imhoff septic tank, an improvement over the ordinary septic tank, is still used in the United States; it is a two-story structure with the upper compartment used for settling the sewage, the lower one for the anaerobic disintegration of sludge. A sloping floor enables solid material to slide to the lower compartment, where, since the sludge is separated from the material in the sedimentation compartment, the action is more rapid.  2, record 7, English, - Imhoff%20tank

Record number: 7, Textual support number: 1 OBS

This two-storied wastewater treatment tank was originally patented by Karl Imhoff.  6, record 7, English, - Imhoff%20tank

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

[...] combinaison d'un digesteur et d'un décanteur primaire, situés l'un au-dessous de l'autre. Les deux parties communiquent par une fente, les boues tombant directement dans la zone de digestion.  4, record 7, French, - fosse%20Imhoff

Record number: 7, Textual support number: 1 OBS

Le terme «fosse Imhoff» désigne originalement le digesteur décanteur conçu par Karl Imhoff; lorsqu'il s'agit de copies du même appareil, il est préférable d'utiliser les termes donnés en synonymes.  7, record 7, French, - fosse%20Imhoff

Record 7,  Textual support,  Spanish

Record number: 7, Textual support number: 1 DEF

Tanque profundo de dos secciones, para aguas negras, patentado originalmente por Karl Imhoff, que consta de una cámara superior o de sedimentación a flujo continuo, y de otra cámara inferior o de digestión de lodos.  1, record 7, Spanish, - tanque%20Imhoff

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

A model of the nucleus in which it is compared to a drop of incompressible liquid, and the nucleons are analogous to molecules in the liquid …  4, record 8, English, - liquid%2Ddrop%20model

Record number: 8, Textual support number: 1 OBS

[The liquid-drop model is] used to study binding energies, fission, collective motion, decay, and reactions.  4, record 8, English, - liquid%2Ddrop%20model

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 DEF

[…] modèle [nucléaire qui] repose sur l’hypothèse de l’existence d’une interaction forte entre les nucléons du noyau atomique.  2, record 8, French, - mod%C3%A8le%20de%20la%20goutte%20liquide

Record number: 8, Textual support number: 1 OBS

Ce modèle, qui s’inspire des propriétés d’une goutte de liquide formée de molécules, permet d’établir une expression semi-empirique donnant la masse M (A, Z) d’un noyau de masse atomique A contenant N neutrons et Z protons.  2, record 8, French, - mod%C3%A8le%20de%20la%20goutte%20liquide

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 DEF

Airborne measuring instrument which uses as a sensor a heated wire which is cooled by the cloud droplets colliding with it.  1, record 9, English, - Johnson%2DWilliams%20liquid%20water%20meter

Record number: 9, Textual support number: 1 OBS

The resultant temperature drop is a function of the liquid water content of the cloud.  1, record 9, English, - Johnson%2DWilliams%20liquid%20water%20meter

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 DEF

Instrument de mesure aéroporté utilisant comme détecteur un fil chauffé qui est refroidi par les gouttelettes de nuage qu'il rencontre.  1, record 9, French, - d%C3%A9tecteur%20d%27eau%20liquide%20Johnson%2DWilliams

Record number: 9, Textual support number: 1 OBS

La perte de température est fonction de la teneur en eau liquide du nuage.  1, record 9, French, - d%C3%A9tecteur%20d%27eau%20liquide%20Johnson%2DWilliams

Record 9,  Textual support,  Spanish

Record number: 9, Textual support number: 1 DEF

Instrumento de medición a bordo de aeronaves que utiliza como detector un hilo calentado que se enfría por las gotitas de nube con las que choca.  1, record 9, Spanish, - calibrador%20de%20agua%20l%C3%ADquida%20de%20Johnson%2DWilliams

Record number: 9, Textual support number: 1 OBS

El descenso resultante de la temperatura es función del contenido de agua líquida de la nube.  1, record 9, Spanish, - calibrador%20de%20agua%20l%C3%ADquida%20de%20Johnson%2DWilliams

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

An apparatus for determining surface tension. The mass of a drop of liquid is measured by weighing a known number of drops or by counting the number of drops obtained from a given volume of the liquid.  3, record 10, English, - stalagmometer

Record number: 10, Textual support number: 2 DEF

An instrument for measuring the size of drops suspended from a capillary tube, used in the drop-weight method.  2, record 10, English, - stalagmometer

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 DEF

Appareil utilisant le comptage des gouttes qui s'écoulent d'un tube capillaire pour effectuer des mesures.  2, record 10, French, - stalagmom%C3%A8tre

Record 10,  Textual support,  Spanish

Record number: 10, Textual support number: 1 DEF

Instrumento para medir la masa de las gotas que manan de un tubo capilar.  2, record 10, Spanish, - estalagm%C3%B3metro

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 DEF

The slow, drop by drop infusion of a liquid.  1, record 11, English, - drip

Record number: 11, Textual support number: 1 CONT

The most straightforward means of administering a drug into the systemic circulation is by intravenously injecting it as a bolus. With this route, the full amount of a drug is delivered to the systemic circulation almost immediately. The same dose may also be administered as an intravenous infusion over a longer time, resulting in a decrease in the peak plasma concentration as well as increasing the time the drug is present in the circulation.  4, record 11, English, - drip

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 DEF

Désignation imagée du débit de perfusion d'un liquide physiologique injecté par voie intraveineuse ou rectale.  2, record 11, French, - perfusion

Record number: 11, Textual support number: 1 OBS

Par extension, ce terme est utilisé pour désigner l'ensemble du système de perfusion (potence support + flacon de perfusion + tuyau.  2, record 11, French, - perfusion

Record 11,  Textual support,  Spanish

Record number: 11, Textual support number: 1 DEF

Proceso para administrar una sustancia diluida por inyección lenta a una vena.  3, record 11, Spanish, - infusi%C3%B3n

Record number: 11, Textual support number: 1 CONT

Las infusiones se usan cuando el aparato digestivo no absorbe cantidades apreciables del fármaco, que además es demasiado denso o tóxico para ser administrado por medio de una inyección rápida.  3, record 11, Spanish, - infusi%C3%B3n

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 DEF

Determination of the average size of fine particles in a fluid(gas or liquid) by passing the mixture through a powder bed of known dimension and recording the pressure drop and flow rate through the bed.  2, record 12, English, - permeametry

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 DEF

Mesure de la perméabilité à l'air d'un lit de poudre.  1, record 12, French, - perm%C3%A9abilim%C3%A9trie

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 CONT

The Vapor Diffusion Apparatus(VDA-2) uses the "hanging drop" method often used on Earth to crystallize proteins. The method is quite simple. Proteins are mixed into a solution that makes them grow-the precipitant solution-and squeezed onto the tip of a syringe. While exposed to the air part of the liquid evaporates, the concentration rises, and crystals form.  3, record 13, English, - hanging%20drop

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 CONT

La plupart des expériences de cristallisation de protéines au sol sont réalisées à l'aide de la méthode de cristallisation en goutte suspendue et de grandes matrices. Cette méthode est difficile à reproduire dans une installation spatiale et, vu les restrictions sur le plan de la masse et du volume, la plupart des expériences spatiales ont donc recours à de plus petites matrices que celles normalement utilisées sur Terre.  3, record 13, French, - goutte%20suspendue

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 DEF

Process of formation of a single liquid water drop by the union of two or more colliding drops.  2, record 14, English, - coalescence

Record number: 14, Textual support number: 1 CONT

Formation of precipitation: Most cloud droplets are very small (0.00004 inch). These droplets easily float in air. Even the slightest air movement keeps them from falling to the ground. The size of the raindrop depends on the original size of the condensation nucleus. Larger droplets ... cannot stay suspended in air. They begin to drift downward. ... As the larger droplets fall, they collide and combine with smaller droplets, making them even larger. The combining together of larger with smaller droplets is called coalescence. These [precipitations] fall as rain, snow, hail or sleet depending on the conditions.  3, record 14, English, - coalescence

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 DEF

Phénomène de formation d'une goutte d'eau liquide unique par réunion de deux ou plusieurs gouttes qui entrent en collision.  3, record 14, French, - coalescence

Record number: 14, Textual support number: 1 CONT

La «coalescence» : En fait, pour qu'il pleuve, c'est à dire, pour que les gouttes d'eau puissent tomber, il faut qu'elles atteignent des dimensions suffisantes. Leur diamètre doit être au minimum de 1/10è de millimètre et ne pas dépasser 5 mm : cela représente jusqu'à un million de fois la quantité d'eau de la gouttelettes d'origine! Ce processus s'appelle «coalescence», du verbe latin coalescere (s'unir). Il se produit par choc : les gouttelettes formant les nuages sont ballottées violemment par le vent, quand leur trajectoire se croisent, elles se transforment, se fondent ensemble et donnent naissance à des gouttes plus grosses. Lorsqu'elles atteignent un certain poids, elles tombent sous forme de pluie et parfois à partir de cristaux de glace qui se forment au milieu des nuages d'orage (cumulonimbus), à la suite d'un gros refroidissement. Si en tombant ils traversent une couche d'air plus chaud, ils fondent et arrivent sur la terre sous forme de pluie.  4, record 14, French, - coalescence

Record number: 14, Textual support number: 2 CONT

Les cristaux de glace augmentent [...] de volume et de poids [...] Ces germes de glace relativement lourds tombent par rapport aux gouttelettes surfondues plus fines qu'ils captent au cours de leur trajectoire, en poursuivant leur croissance : c'est la coalescence ou captation.  2, record 14, French, - coalescence

Record 14,  Textual support,  Spanish

Record number: 14, Textual support number: 1 DEF

Proceso de formación de una gota única por la unión de dos o más gotas que entran en colisión.  1, record 14, Spanish, - coalescencia

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 DEF

Temperature noted(corrected if required) at the moment of vaporization of the last drop of liquid at the bottom of a flask during a distillation carried out under standardized conditions. [Definition standardized by ISO. ]  2, record 15, English, - dry%20point

Record number: 15, Textual support number: 1 OBS

dry point: term standardized by ISO.  3, record 15, English, - dry%20point

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 DEF

Température relevée (et éventuellement corrigée) au moment de la vaporisation de la dernière goutte de liquide au fond du ballon, au cours d'une distillation effectuée dans des conditions normalisées. [Définition normalisée par l'ISO.]  2, record 15, French, - point%20sec

Record number: 15, Textual support number: 1 OBS

point sec; point sec de distillation : termes normalisés par l'ISO.  3, record 15, French, - point%20sec

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 CONT

pressure drop : A decrease in pressure that is caused by friction between a flowing liquid and a constricting container. The pressure drop is increased by a reduction in diameter of the container.  1, record 16, English, - flowing%20liquid

Record 16,  Textual support,  French

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 CONT

pressure drop : A decrease in pressure that is caused by friction between a flowing liquid and a constricting container. The pressure drop is increased by a reduction in diameter of the container.  1, record 17, English, - constricting%20container

Record 17,  Textual support,  French

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 DEF

A falling of liquid drop by drop.  1, record 18, English, - dripping

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 CONT

Écoulement goutte par goutte; Les stalactites se forment par stillation.  1, record 18, French, - stillation

Record 18,  Textual support,  Spanish

Record number: 18, Textual support number: 1 DEF

Caída gota a gota de un líquido destilado o que mana.  2, record 18, Spanish, - estilicidio

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 DEF

The property of a liquid, particularly of a solution of surface active agents, which enables a drop of this liquid to cover spontaneously another liquid or solid surface.  1, record 19, English, - spreading%20ability

Record number: 19, Textual support number: 1 OBS

spreading ability: term and definition standardized by ISO.  2, record 19, English, - spreading%20ability

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 DEF

Propriété d'un liquide, et en particulier d'une solution d'agents de surface, permettant à une goutte de ce liquide de recouvrir spontanément une surface d'un autre liquide ou d'un solide.  1, record 19, French, - aptitude%20%C3%A0%20l%27%C3%A9talement

Record number: 19, Textual support number: 1 OBS

aptitude à l'étalement : terme et définition normalisés par l'ISO.  2, record 19, French, - aptitude%20%C3%A0%20l%27%C3%A9talement

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 DEF

A process in which a drop of liquid spreads over a solid or liquid substrate.  1, record 20, English, - spreading%20wetting

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 DEF

[...] processus dans lequel une goutte de liquide s'étale sur un substrat solide ou liquide.  1, record 20, French, - %C3%A9talement%20mouillant

Record 20,  Textual support,  Spanish

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 DEF

The instrument consists of a smooth-walled cylinder in which is a piston. The piston is mechanically raised at a predetermined frequency and is allowed to fall freely back to its minimum position. Within the cylinder is an accurately machined orifice through which the measured material enters the cylinder when the piston is raised and is displaced by the weight of the piston on its free fall. Thus the measurement of the time required by the piston to displace the material through the orifice is directly proportional to the viscosity of the material.  1, record 21, English, - falling%2Dpiston%2Dtype%20viscosity%2Dmeasuring%20element

Record number: 21, Textual support number: 1 CONT

The schematic view of the falling-piston type of viscosity measuring element shows the piston arrangement which is immersed in the liquid whose viscosity is to be measured. The time required for the piston to drop is a measure of the viscosity, and this measurement is electrically transmitted to an indicator, recorder, or controller where it is converted to desired viscosity units.  2, record 21, English, - falling%2Dpiston%2Dtype%20viscosity%2Dmeasuring%20element

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 DEF

Viscosimètre constitué d'un tube calibré rempli du liquide dont on veut mesurer la viscosité, dans lequel se trouve un piston. Le temps de chute du piston dans le tube calibré est directement proportionnel à la viscosité dynamique.  1, record 21, French, - viscosim%C3%A8tre%20%C3%A0%20piston%20tombant

Record number: 21, Textual support number: 1 CONT

Le viscosimètre à piston tombant fonctionne de la même façon que le viscosimètre à bille tombante, sauf qu'il permet de mesurer la viscosité des fluides non newtoniens. Le piston est soulevé régulièrement (toutes les deux minutes en général), ce qui permet au liquide de pénétrer dans la cavité. Le piston est ensuite relâché et tombe, livré à la gravité, ce qui refoule le liquide et le fait s'échapper par le pourtour, puis par l'ouverture ménagée à cette fin. Le temps de descente est mesuré par un circuit électronique qui transmet un signal de 4 à 20 mA proportionnel au temps mesuré. Ce signal est maintenu jusqu'à la prochaine mesure.  1, record 21, French, - viscosim%C3%A8tre%20%C3%A0%20piston%20tombant

Record 21,  Textual support,  Spanish

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 DEF

Batter of such consistency as to drop form a bowl or spoon without running usually made in a proportion of two parts flour to one part liquid.  1, record 22, English, - drop%20batter

Record 22,  Textual support,  French

Record number: 22, Textual support number: 1 OBS

Par opposition à pâte liquide, le mélange se veut consistant comme pour des muffins, des grands-pères ou des pains éclairs.  1, record 22, French, - p%C3%A2te%20solide

Record 22,  Textual support,  Spanish

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 CONT

Air release chambers are installed ahead of any metering equipment to ensure accurate measurement of fuel flow. They may be installed in either the pumphouse or on the dispensing platform. They operate on the reduced flow velocity principle which separates and eliminates air from the fuel. As the fuel enters the air release chamber(the diameter of which is much greater than the diameter of the inlet to the air release body), the velocity of the flow is greatly reduced allowing an interval of time for the air to separate from the fuel. The air, being lighter than the liquid, rises to the top of the chamber, where it remains until a sufficient quantity has accumulated to lower the liquid level, causing the float to drop, which in turn opens the vent valve and allows the accumulated air to escape. In most cases the line from the air vent is returned to the storage or scavenger tank to prevent spraying fuel into the surrounding area in case of a malfunction of the air release chamber.  1, record 23, English, - air%20release%20chamber

Record 23,  Textual support,  French

Record number: 23, Textual support number: 1 CONT

Des chambres de désaération sont placées immédiatement en amont de tout dispositif de mesure, ceci afin d'assurer la précision des mesures de débit. Ces appareils peuvent être installés dans la station de pompage ou sur la plate-forme de distribution. Ils agissent par réduction de la vitesse d'écoulement, ce qui permet à l'air de se dissocier du produit pétrolier. Lorsque le produit entre dans la chambre (dont le diamètre du corps est de beaucoup supérieur à celui de l'orifice d'admission), sa vitesse d'écoulement diminue sensiblement. L'air, plus léger que le liquide, remonte à la surface, et y demeure jusqu'à ce qu'une quantité suffisante se soit accumulée; le flotteur, qui s'est abaissé en raison de la baisse proportionnelle du niveau du liquide, commande alors l'ouverture du purgeur qui permet à l'air de s'échapper. Dans la plupart des cas, une canalisation relie le purgeur au réservoir de stockage ou de reprise d'évacuation afin d'éviter toute dispersion de produit à l'extérieur en cas de mauvais fonctionnement de la chambre ou du purgeur.  1, record 23, French, - chambre%20de%20d%C3%A9sa%C3%A9ration

Record 23,  Textual support,  Spanish