TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

An ion-selective electrode(ISE)... is a transducer(or sensor) that converts the activity of a specific ion dissolved in a solution into an electrical potential, which can be measured by a voltmeter or pH meter.  1, record 1, English, - ion%2Dselective%20electrode

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Les électrodes sélectives d'ions et sensibles au gaz permettent de déterminer rapidement et facilement la concentration et l'activité de nombreux gaz et ions dissous.  1, record 1, French, - %C3%A9lectrode%20s%C3%A9lective%20d%27ions

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 OBS

Term(s) taken from a Canadian laboratory-equipment company’s catalogue.  1, record 3, English, - standard%20BNC%20combination%20pH%20electrode

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 OBS

Terme(s) tiré(s) du catalogue d'une compagnie canadienne d'équipement de laboratoire.  1, record 3, French, - %C3%A9lectrode%20combin%C3%A9e%20BNC%20standard%20pour%20pH

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 OBS

Term(s) taken from a Canadian laboratory-equipment company’s catalogue.  1, record 4, English, - Ross%20pH%20electrode

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 OBS

Terme(s) tiré(s) du catalogue d'une compagnie canadienne d'équipement de laboratoire.  1, record 4, French, - %C3%A9lectrode%20pour%20pH%20Ross

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 OBS

Term(s) taken from a Canadian laboratory-equipment company’s catalogue.  1, record 5, English, - ROSS%20SURE%2DFLOW%20pH%20electrode

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 OBS

Terme(s) tiré(s) du catalogue d'une compagnie canadienne d'équipement de laboratoire.  1, record 5, French, - %C3%A9lectrode%20pour%20pH%20SURE%2DFLOW%20de%20ROSS

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 OBS

Term(s) taken from a Canadian laboratory-equipment company’s catalogue.  1, record 6, English, - pH%20electrode%20fill%20solution

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 OBS

Terme(s) tiré(s) du catalogue d'une compagnie canadienne d'équipement de laboratoire.  1, record 6, French, - solution%20de%20remplissage%20pour%20%C3%A9lectrode%20de%20pH

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  French

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 OBS

Term(s) taken from a Canadian laboratory-equipment company’s catalogue.  1, record 8, English, - Orion%20combination%2FpH%20electrode

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 OBS

Terme(s) tiré(s) du catalogue d'une compagnie canadienne d'équipement de laboratoire.  1, record 8, French, - %C3%A9lectrode%20combin%C3%A9e%2FpH%20Orion

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 OBS

Term(s) taken from a Canadian laboratory-equipment company’s catalogue.  1, record 9, English, - general%20purpose%20rugged%20bulb%20pH%20electrode

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 OBS

Terme(s) tiré(s) du catalogue d'une compagnie canadienne d'équipement de laboratoire.  1, record 9, French, - %C3%A9lectrode%20d%27usage%20g%C3%A9n%C3%A9ral%20pour%20pH%2C%20%C3%A0%20bulbe%20robuste

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

Movement of liquid across an electrophoretic support medium due to the migration of hydrated ions of the charge opposite that of the charged functional group in the support medium (e.g. -Ch₂COO- in cellulose acetate).  1, record 10, English, - electroosmosis

Record number: 10, Textual support number: 1 CONT

Electro-osmosis is the transport of water from one electrode to another. It results from the support medium being charged. At neutral and alkaline pH the charge is usually negative, the charged medium therefore attempts to move towards the anode. To balance this, positively charged water molecules(H₃O⁺) move to the cathode. This movement of water does not affect the fractionating capacity but can cause loss of water from reservoirs, thus altering the homogeneity of the electrophoretic field.  4, record 10, English, - electroosmosis

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 DEF

Électrisation superficielle d'origine chimique des parois des canalicules d'une masse poreuse laissant filtrer une solution. Cette dernière n'étant plus neutre, les ions qui la constituent sont mis en mouvement sous l'effet d'un champ électrique en entraînant par viscosité le solvant qui les entoure.  3, record 10, French, - %C3%A9lectro%2Dosmose

Record number: 10, Textual support number: 1 CONT

Dans l'électrophorèse libre, les mesures sous microscope effectuées dans des canaux très fins, se compliquent du fait de la superposition de deux phénomènes : l'électrophorèse (déplacement des particules par rapport au liquide) et l'électro-osmose (déplacement du liquide le long des parois du canal).  2, record 10, French, - %C3%A9lectro%2Dosmose

Record 10,  Textual support,  Spanish

Record number: 10, Textual support number: 1 DEF

Ósmosis que se favorece estableciendo una diferencia de potencial eléctrico entre dos electrodos situados a ambos lados de una membrana semipermeable.  2, record 10, Spanish, - electro%C3%B3smosis

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 OBS

Term(s) taken from a Canadian laboratory-equipment company’s catalogue.  1, record 11, English, - flat%20surface%20combination%20pH%2Freference%20electrode

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 OBS

Terme(s) tiré(s) du catalogue d'une compagnie canadienne d'équipement de laboratoire.  1, record 11, French, - %C3%A9lectrode%20combin%C3%A9e%20pH%2Fr%C3%A9f%C3%A9rence%20pour%20surfaces%20planes

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 OBS

Term(s) taken from a Canadian laboratory-equipment company’s catalogue.  1, record 12, English, - combination%2FpH%20electrode

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 OBS

Terme(s) tiré(s) du catalogue d'une compagnie canadienne d'équipement de laboratoire.  1, record 12, French, - %C3%A9lectrode%20combin%C3%A9e%2FpH

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 OBS

Term(s) taken from a Canadian laboratory-equipment company’s catalogue.  1, record 13, English, - combination%20pH%2Freference%20electrode

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 OBS

Terme(s) tiré(s) du catalogue d'une compagnie canadienne d'équipement de laboratoire.  1, record 13, French, - %C3%A9lectrode%20combin%C3%A9e%20pH%2Fr%C3%A9f%C3%A9rence

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  French

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 OBS

Term(s) taken from a Canadian laboratory-equipment company’s catalogue.  1, record 15, English, - Ag%2FAgCl%20internal%20pH%20electrode

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 OBS

Terme(s) tiré(s) du catalogue d'une compagnie canadienne d'équipement de laboratoire.  1, record 15, French, - %C3%A9lectrode%20de%20pH%20interne%20Ag%2FAgCl

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 DEF

Electrode which results from the union of an enzyme with an electronic sensor(an ion-selective electrode). The electrode is useful for the assay of organic and inorganic compounds, in a manner as simple as a pH measurement with a glass electrode.  2, record 16, English, - enzyme%20electrode

Record number: 16, Textual support number: 1 CONT

The earliest enzyme electrodes consisted of an electrochemical sensor, a semipermeable membrane and an intermediate layer containing the enzyme. This system required diffusion of the substrate through the membrane, there to react with the enzyme and so causing production or consumption of a material which was then measured by the electrochemical sensor.... Later enzyme electrodes dispensed with the semipermeable membrane and to attain more rapid response times used enzymes immobilised on easily accessible surfaces of inorganic supports.  3, record 16, English, - enzyme%20electrode

Record number: 16, Textual support number: 1 OBS

Indirect enzyme electrodes involve the detection of an enzyme reactant by a specific, usually ion-selective electrode. Direct enzyme electrodes incorporate redox enzymes coupled to an electrode with a flow of electrons between the cofactor involved in the enzyme reaction and the electrode.  4, record 16, English, - enzyme%20electrode

Record 16,  Textual support,  French

Record number: 16, Textual support number: 1 DEF

Électrode recouverte d'une couche enzymatique adaptée aux cas où la substance à doser ne permet pas une mesure électrique directe mais où l'un des produits de la réaction enzymatique permet cette mesure.  1, record 16, French, - %C3%A9lectrode%20%C3%A0%20enzyme

Record number: 16, Textual support number: 1 CONT

Les techniques d'immobilisation ou de confinement d'enzymes ou autre matériel biologique se sont largement développées ces dernières années. Parmi les méthodes utilisées pour la réalisation d'électrodes à enzymes, la fixation covalente sur des supports insolubles préalablement activés, la réticulation, l'inclusion dans un gel ainsi que le confinement d'enzymes en solution sont les plus employées.  3, record 16, French, - %C3%A9lectrode%20%C3%A0%20enzyme

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 DEF

Device that provides an output quantity having a determined relationship to the input quantity.  2, record 17, English, - measuring%20transducer

Record number: 17, Textual support number: 1 OBS

Examples : a) thermocouple; b) current transformer; c) strain gauge; d) pH electrode.  2, record 17, English, - measuring%20transducer

Record number: 17, Textual support number: 2 OBS

measuring transducer: term and definition approved by ISO, the International Bureau of Weights and Measures (BIPM), the International Electrotechnical Commission (IEC), the International Organization of Legal Metrology (OIML), and others.  3, record 17, English, - measuring%20transducer

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 DEF

Dispositif qui fait correspondre à une grandeur d'entrée une grandeur de sortie selon une loi déterminée.  3, record 17, French, - transducteur%20de%20mesure

Record number: 17, Textual support number: 1 OBS

Exemples : a) thermocouple; b) transformateur de courant; c) jauge de contrainte; d) électrode de pH.  3, record 17, French, - transducteur%20de%20mesure

Record number: 17, Textual support number: 2 OBS

transducteur de mesure : terme normalisé par l'AFNOR.  4, record 17, French, - transducteur%20de%20mesure

Record number: 17, Textual support number: 3 OBS

transducteur de mesure : terme et définition entérinés, entre autres, par l'ISO, par le Bureau international des poids et mesures (BIPM), par la Commission électrotechnique internationale (CEI) et par l'Organisation internationale de métrologie légale (OIML).  4, record 17, French, - transducteur%20de%20mesure

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 DEF

A platinum wire in a saturated solution of quinhydrone; used as a reversible electrode standard in pH determinations.  3, record 18, English, - quinhydrone%20electrode

Record number: 18, Textual support number: 1 CONT

In the potentiometric procedures, the more important pH-indicating electrodes are the hydrogen-gas electrode, the quinhydrone electrode, and the glass electrode. Each of these, in combination with a reference electrode, constitutes a chemical cell whose potential can be used to determine the hydrogen-ion activity of a solution.  4, record 18, English, - quinhydrone%20electrode

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 CONT

On constitue avec la solution de pH inconnu une cellule électrochimique dont l'une des deux électrodes a un potentiel constant (électrode de référence), et dont l'autre a un potentiel dépendant du pH. [...] L'électrode indicatrice peut être une électrode à hydrogène, une électrode à quinhydrone, une électrode d'antimoine, ou plus commodément une électrode de verre.  1, record 18, French, - %C3%A9lectrode%20%C3%A0%20quinhydrone

Record number: 18, Textual support number: 1 OBS

L'électrode constitue la moitié d'une cellule puisque cette dernière est constituée de deux électrodes.  4, record 18, French, - %C3%A9lectrode%20%C3%A0%20quinhydrone

Record 18,  Textual support,  Spanish

Record number: 18, Textual support number: 1 DEF

Semicelda que comprende un electrodo inatacable en contacto con una solución de un electrólito saturado de quinhidrona.  1, record 18, Spanish, - electrodo%20de%20quinhidrona

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 DEF

Logarithm of the reciprocal of the hydrogen-ion concentration in a solution (-log₁₀[H⁺]) used as a measure of the degree of acidity or alkalinity of this solution.  3, record 19, English, - pH

Record number: 19, Textual support number: 1 CONT

Roughly, pH can be divided into the following ranges: pH 0-2: Strongly acidic; pH 3-5: Weakly acidic; pH 6-8: Neutral; pH 9-11: Weakly basic; pH 12-14: Strongly basic. Under the Controlled Products Regulations, materials with pH values of 0-2 or 11.5-14 may be classified corrosive.  4, record 19, English, - pH

Record number: 19, Textual support number: 1 OBS

A pH of 7 is regarded as neutral (pure water), a pH less than 7 corresponds to an acid solution and a pH greater than 7 corresponds to an alkaline solution.  3, record 19, English, - pH

Record number: 19, Textual support number: 2 OBS

It should be noted that the pH scale is a logarithmic scale; a substance with a pH of 4 is more than twice as acid as a substance with a pH of 5. Similarly, a substance with a pH of 9 is much more than twice as alkaline as a substance with a pH of 8.  5, record 19, English, - pH

Record number: 19, Textual support number: 1 PHR

pH buffer solution, control, decline, diagram, electrode, gradient, indicator, limit, measurement, meter, modifier, probe, range, scale, unit, value.  6, record 19, English, - pH

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 DEF

Indice exprimant l'activité (ou la concentration) de l'ion hydrogène dans une solution à l'aide d'une échelle logarithmique.  5, record 19, French, - pH

Record number: 19, Textual support number: 1 OBS

Si le pH est inférieur à 7, la solution est acide; s'il est supérieur, elle est alcaline.  5, record 19, French, - pH

Record number: 19, Textual support number: 1 PHR

valeur de pH.  6, record 19, French, - pH

Record 19,  Textual support,  Spanish

Record number: 19, Textual support number: 1 DEF

Cologaritmo de la concentración de iones hidrógeno en una solución (-log₁₀[H⁺]) utilizado como medida del grado de acidez o alcalinidad de esta solución.  3, record 19, Spanish, - pH

Record number: 19, Textual support number: 1 OBS

Un pH de 7 se considera neutro (agua pura), un pH inferior a 7 corresponde a una solución ácida y un pH superior a 7 a una solución alcalina.  3, record 19, Spanish, - pH

Record number: 19, Textual support number: 1 PHR

valor de pH.  4, record 19, Spanish, - pH

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 OBS

Ottawa: Canadian General Standards Board (CGSB), 2004. Standard number, CAN/CGSB-25.1 NO. 13.2-95/ASTM E 70-90.  1, record 20, English, - Methods%20of%20Sampling%20and%20Testing%20Waxes%20and%20Polishes%2DStandard%20Test%20Method%20for%20pH%20of%20Aqueous%20Solutions%20with%20the%20Glass%20Electrode

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 OBS

Ottawa : Office des normes générales du Canada (ONGC), 2004.  1, record 20, French, - M%C3%A9thodes%20d%27%C3%A9chantillonnage%20et%20d%27essai%20des%20cires%20et%20encaustiques%20%2D%20M%C3%A9thode%20d%27essai%20normalis%C3%A9e%20%2D%20D%C3%A9termination%20du%20pH%20des%20solutions%20aqueuses%20au%20moyen%20d%27une%20%C3%A9lectrode%20en%20verre

Record 20,  Textual support,  Spanish

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 DEF

Determination of the hydrogen-ion concentration in an ionized solution by means of an indicator solution (such as phenol phthalein) or a pH meter.  2, record 21, English, - pH%20measurement

Record number: 21, Textual support number: 1 CONT

The two general methods available for the determination of hydrogen-ion activity and the pH values of solutions are the potentiometric procedures and the calorimetric procedures.... At the present time the glass electrode, in combination with reference electrodes, is the cell most used for pH measurements.  3, record 21, English, - pH%20measurement

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 CONT

La mesure de l'activité des ions H+, c'est-à-dire la mesure du pH d'une solution, peut se faire par voie électrométrique ou par voie colorimétrique. La détermination électrométrique du pH repose sur la mesure de la f.é.m. [...]  1, record 21, French, - mesure%20de%20pH

Record 21,  Textual support,  Spanish

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 CONT

A pH meter equipped with a glass electrode system consists of the pH glass electrode(a glass stem with a tip of this pH sensitive glass), a reference electrode, and an electronic polentiometer to measure the electrical potential between the two electrodes.  1, record 22, English, - glass%20electrode%20system

Record 22,  Textual support,  French

Record 22,  Textual support,  Spanish

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 CONT

The ISFET(Ion Sensitive Field Effect Transistor) methodoly for ion measurements is developed on the basis of the MOSFET(Metal Oxide Silicon Field Effect Transistor). The first attempts to use the ISFET as pH sensor were made already in 1970. The basic principle underlying the MOSFET is the control of a current flowing between two semiconductor electrodes. Drain and source are placed on the same element, with a third electrode, the gate, between them.  3, record 23, English, - ion%2Dsensitive%20field%20effect%20transistor

Record 23,  Textual support,  French

Record 23,  Textual support,  Spanish

Record 24,  Textual support,  English

Record number: 24, Textual support number: 1 DEF

The primary standard used for measurement of hydrogen ion concentrations.  2, record 24, English, - pH%20electrode

Record 24,  Textual support,  French

Record number: 24, Textual support number: 1 DEF

Électrode permettant une détermination potentiométrique de pH.  3, record 24, French, - %C3%A9lectrode%20indicatrice%20de%20pH

Record 24,  Textual support,  Spanish

Record 25,  Textual support,  English

Record number: 25, Textual support number: 1 DEF

Deviation of a glass electrode from the hydrogen-ion response function. An example often encountered is the error due to sodium ions at alkaline pH values, which by convention is regarded as positive.  1, record 25, English, - glass%20electrode%20error

Record 25,  Textual support,  French

Record number: 25, Textual support number: 1 DEF

Écart de réponse entre une électrode de verre et une électrode d'hydrogène. Un exemple fréquent est l'erreur due aux ions sodium pour un pH alcalin, qui est considérée par convention comme positive.  1, record 25, French, - erreur%20d%27une%20%C3%A9lectrode%20de%20verre

Record 25,  Textual support,  Spanish

Record 26,  Textual support,  English

Record number: 26, Textual support number: 1 DEF

A reference electrode contained inside an ion-selective assembly, e. g. for a glass electrode, silver-silver chloride, electrically connected to the screened input cable to the pH meter, and in contact with the internal filling solution.  1, record 26, English, - internal%20reference%20electrode

Record 26,  Textual support,  French

Record number: 26, Textual support number: 1 DEF

[...] électrode [...] placée à l'intérieur du dispositif qui constitue l'électrode indicatrice à membrane sélective, par exemple une électrode de verre du type Ag/AgCl, reliée d'une façon électrique à un pH-mètre et en contact avec une solution interne de remplissage.  1, record 26, French, - %C3%A9lectrode%20de%20r%C3%A9f%C3%A9rence%20interne

Record 26,  Textual support,  Spanish

Record 27,  Textual support,  English

Record number: 27, Textual support number: 1 DEF

Sensor composed of an indicating and a reference electrode which uses a gas-permeable membrane or an air-gap to separate the sample solution from the thin film of an intermediate solution, which is either held between the gas membrane and ion-sensing membrane of the electrode,or placed on the surface of the electrode using a wetting agent (e.g. air-gap electrode).  1, record 27, English, - gas%20sensing%20electrode

Record number: 27, Textual support number: 1 OBS

This intermediate solution interacts with the gaseous species in such a way as to produce a change in a measured value(e. g. pH) of the intermediate solution. This change is then sensed by the ion-selective electrode and is proportional to the partial pressure of the gaseous species in the sample.  1, record 27, English, - gas%20sensing%20electrode

Record 27,  Textual support,  French

Record number: 27, Textual support number: 1 DEF

[Électrode] réalisée à partir de systèmes composés d'une électrode indicatrice et d'une électrode de référence et ... [qui] utilise une membrane perméable aux gaz ou une bulle d'air pour séparer la solution à analyser d'un film mince d'une solution intermédiaire qui est, soit maintenue entre la membrane perméable aux gaz et la membrane sensible de l'électrode, soit fixée à la surface de l'électrode au moyen d'un agent tensioactif.  1, record 27, French, - %C3%A9lectrode%20indicatrice%20de%20gaz

Record number: 27, Textual support number: 1 OBS

Cette solution intermédiaire réagit avec le gaz et produit un changement dans la valeur d'une grandeur mesurable (par exemple, le pH). Cette variation est ensuite mesurée par l'électrode à membrane sélective. Elle est proportionnelle à la pression partielle du gaz dans l'échantillon.  1, record 27, French, - %C3%A9lectrode%20indicatrice%20de%20gaz

Record number: 27, Textual support number: 2 OBS

L'électrode à hydrogène, qui répond aussi bien à la pression partielle d'hydrogène qu'au pH, est une exception. L'électrode à oxygène est comprise dans cette catégorie bien qu'elle mette en jeu un dispositif ampérométrique et non pas potentiométrique comme les autres systèmes.  1, record 27, French, - %C3%A9lectrode%20indicatrice%20de%20gaz

Record 27,  Textual support,  Spanish

Record 28,  Textual support,  English

Record number: 28, Textual support number: 1 DEF

A hydrogen-ion responsive electrode usually consisting of a bulb, or other suitable form, of special glass attached to a stem of high resistance glass complete with internal reference electrode and internal filling solution system. Other geometrical forms may be appropriate for special applications, e. g. capillary electrode for measurement of blood pH.  1, record 28, English, - pH%20glass%20electrode

Record 28,  Textual support,  French

Record number: 28, Textual support number: 1 DEF

[...] électrode sensible aux ions hydrogènes, généralement constituée d'un bulbe (ou d'une autre forme appropriée) d'un verre spécial fixé à une tige de verre de grande résistance, contenant une électrode de référence interne et une solution interne de remplissage. D'autres formes géométriques peuvent être appropriées pour des applications spéciales, par exemple, les électrodes capillaires utilisées pour mesurer le pH du sang.  1, record 28, French, - %C3%A9lectrode%20de%20verre%20pour%20le%20pH

Record 28,  Textual support,  Spanish

Record 29,  Textual support,  English

Record number: 29, Textual support number: 1 OBS

Standard number: CAN/CGSB-25.1-13.2-95/ASTM E 70-90  1, record 29, English, - Standard%20Test%20Method%20of%20Ph%20of%20Aqueous%20Solutions%20with%20the%20Glass%20Electrode

Record 29,  Textual support,  French

Record number: 29, Textual support number: 1 OBS

Numéro de norme : CAN/CGSB-25.1-13.2-95/ASTM E 70-90  1, record 29, French, - M%C3%A9thode%20d%27essai%20normalis%C3%A9e%20%2D%20D%C3%A9termination%20du%20Ph%20des%20solutions%20aqueuses%20au%20moyen%20d%27une%20%C3%A9lectrode%20en%20verre

Record 29,  Textual support,  Spanish

Record 30,  Textual support,  English

Record number: 30, Textual support number: 1 DEF

An electrode which consists of antimony metal coated with antimonous oxide. The potential of the electrode varies with pH and thus serves as a means of measuring pH.  2, record 30, English, - antimony%20electrode

Record number: 30, Textual support number: 1 CONT

There are several types of measuring electrode; including the very accurate hydrogen electrode and the quinhydrone electrode (both of which are used in the laboratory only), the antimony electrode, which is a very robust industrial type, and the glass electrode which is of universal application. The glass electrode consists of a small thin-wall bulb containing a silver electrode and a buffer solution.  3, record 30, English, - antimony%20electrode

Record 30,  Textual support,  French

Record number: 30, Textual support number: 1 DEF

Une électrode qui consiste en une tige d'antimoine recouverte d'oxyde d'antimoine. Elle sert à mesurer le pH d'acides forts.  3, record 30, French, - %C3%A9lectrode%20d%27antimoine

Record number: 30, Textual support number: 1 CONT

Il existe plusieurs types d'électrode de mesure : l'électrode à hydrogène très précise et l'électrode à quinhydrone réservées au laboratoire; l'électrode d'antimoine, électrode industrielle robuste; l'électrode de verre qui présente un caractère universel d'emploi. Cette dernière est constituée par une petite ampoule à paroi très mince qui contient une électrode d'argent et une solution tampon.  4, record 30, French, - %C3%A9lectrode%20d%27antimoine

Record 30,  Textual support,  Spanish

Record 31,  Textual support,  English

Record 31,  Textual support,  French

Record number: 31, Textual support number: 1 CONT

Mesure du pH Méthode potentiométrique. Matériel courant de laboratoire et pH-mètre, muni d'une électrode de verre, sensibilité 0,05 unité de pH.  1, record 31, French, - pH%2Dm%C3%A8tre%20muni%20d%27une%20%C3%A9lectrode%20de%20verre

Record 31,  Textual support,  Spanish

Record 32,  Textual support,  English

Record number: 32, Textual support number: 1 CONT

To find the pH of a test solution, the electromotive force, E, generated is measured by placing two standard electrodes(usually a glass electrode and a calomel electrode) into the test solution.... Here pH_3</sub> and E₃ are values for a standard solution using the same electrodes.  1, record 32, English, - test%20solution

Record 32,  Textual support,  French

Record number: 32, Textual support number: 1 CONT

L'Union internationale de chimie pure et appliquée a adopté la définition suivante [de la mesure électrométrique du pH] : le pH de la solution inconnue est donné par [une équation] où pH_x est le pH de la solution inconnue; pH_(E) est le pH de la solution étalon (...)  1, record 32, French, - solution%20inconnue

Record 32,  Textual support,  Spanish

Record 33,  Textual support,  English

Record number: 33, Textual support number: 1 OBS

PH meters. On the industrial scale, pH is always measured by electrometric methods, using two electrodes-a reference electrode and a measuring electrode;(...)  1, record 33, English, - electrometric%20method

Record 33,  Textual support,  French

Record number: 33, Textual support number: 1 OBS

Les pHmètres. Industriellement, la mesure du pH se fait toujours par électrométrie à l'aide de deux électrodes: une électrode de référence, une électrode de mesure; (...)  1, record 33, French, - %C3%A9lectrom%C3%A9trie

Record 33,  Textual support,  Spanish

Record 34,  Textual support,  English

Record number: 34, Textual support number: 1 OBS

The negative logarithm of the hydrogen-ion activity of a soil. The degree of acidity or alkalinity of a soil as determined by means of a glass, quinhydrone, or other suitable electrode or indicator at a specified moisture content or soil-water ratio, and expressed in terms of the pH scale.  1, record 34, English, - soil%20pH

Record 34,  Textual support,  French

Record number: 34, Textual support number: 1 OBS

Logarithme négatif de l'activité des ions d'hydrogène d'un sol. Degré d'acidité ou d'alcalinité, mesuré au moyen d'une électrode en verre, d'une électrode à quinhydrone ou de tout autre électrode ou indicateur approprié, d'un sol ayant une teneur en eau ou un rapport sol/eau déterminé; s'exprime en unités de l'échelle des pH.  1, record 34, French, - pH%20du%20sol

Record 34,  Textual support,  Spanish