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1 test
A n1 (of person, ability, resources) gen épreuve f, Psych test m ; Sch, Univ ( written) contrôle m, interrogation f écrite ; ( oral) interrogation f orale, épreuve f orale ; to put sb/sth to the test mettre qn/qch à l'épreuve ; a test of strength une épreuve de force ; to stand the test (of time) résister à l'épreuve (du temps) ; a method that has stood the test of time une méthode éprouvée ; intelligence/personality test test d'aptitude intellectuelle/de personnalité ; it was a severe test of his patience/physical strength cela mettait sa patience/force physique à rude épreuve ; the crisis was a real test of their relationship cette crise a vraiment mis leurs rapports à l'épreuve ; tomorrow's match should be a good test of the team's capabilities le match de demain devrait permettre de savoir de quoi l'équipe est capable ; Tuesday's poll should be a good test of popular opinion le scrutin de mardi devrait permettre de se faire une idée de l'état de l'opinion publique ; the best test of a good novel/car is… le meilleur critère pour juger de la valeur d'un roman/d'une voiture est… ;2 Comm, Ind, Tech (of equipment, machine, new model) essai m ; ( of new product) contrôle m, essai m ;3 Med (of blood, urine) analyse f ; ( of organ) examen m ; (to detect virus, cancer) test m de dépistage ; Chem, Pharm analyse f ; eye/hearing test examen des yeux/de l'ouïe ; blood test analyse de sang ; Aids test test de dépistage du sida ; to have a blood test se faire faire une analyse de sang ; the iodine test for starch le test à l'iode pour détecter la présence d'amidon ;4 Aut ( also driving test) examen m du permis de conduire ; to pass/fail one's test être reçu à/échouer son (examen du) permis de conduire ;B vtr1 (assess, examine) gen évaluer [intelligence, efficiency] ; Sch ( in classroom) interroger [student] (on en), ( at exam time) contrôler [student] ; Psych tester ; during the interview they tested him on his knowledge of French/current affairs au cours de l'entretien ils lui ont posé des questions pour évaluer ses connaissances en français/sur les problèmes d'actualité ; to test sb's intelligence gen évaluer l'intelligence de qn, ( formally) faire subir un test d'aptitude intellectuelle à qn ;2 Comm, Tech essayer, tester [vehicle, product] ; Med, Pharm analyser, faire une analyse (or des analyses) de [blood, urine, sample] ; expérimenter [new drug, vaccine] ; Chem analyser ; to have one's eyes tested se faire faire un examen des yeux ; to test sb for steroids faire subir une analyse à qn pour déterminer la présence de stéroïdes ; he was tested for Aids/leukemia on lui a fait subir un test de dépistage du sida/de la leucémie ; the water was tested for pollution on a analysé l'eau pour voir si elle était polluée ; to test drugs on animals expérimenter des médicaments sur les animaux ; all the new equipment has been tested for faults le nouveau matériel a été entièrement testé et essayé ; to test the water lit [swimmer] prendre la température de l'eau, Chem analyser l'eau, fig tâter le terrain, se faire une idée de la situation ; well-tested [method, formula, model] éprouvé, qui a fait ses preuves ;3 (tax, strain) mettre [qch] à l'épreuve [endurance, strength, patience, courage, effectiveness] ; her patience was severely tested sa patience a été mise à rude épreuve.C vi to test for starch/for alcohol ( in laboratory) faire une recherche d'amidon/d'alcool ; to test for an infection/allergy faire des analyses pour trouver la cause d'une infection/allergie ; his blood tested negative son analyse de sang a été négative ; ‘one, two, three, testing’ ( when trying out microphone) ≈ ‘un, deux, trois, un, deux, trois’. -
2 yoduro de potasio
Ex. Test for starch in the size with a spot of iodine solution (2-5 gm. potassium iodide, 0-5 gm. iodine, in 500 ml. distilled water).* * *Ex: Test for starch in the size with a spot of iodine solution (2-5 gm. potassium iodide, 0-5 gm. iodine, in 500 ml. distilled water).
См. также в других словарях:
Iodine test — The Iodine test is used to test for the presence of starch. Iodine solution iodine dissolved in an aqueous solution of potassium iodide reacts with starch producing a deep blue black color.This reaction is the result of the formation of… … Wikipedia
Winkler test for dissolved oxygen — The Winkler test is used to determine the level of dissolved oxygen in water samples. This metric is then used to estimate the biological activity in the water sample. An excess of Manganese(II) salt, iodide (I ) and hydroxide (OH ) ions are… … Wikipedia
Starch — Starch, CAS# 9005 25 8, chemical formula (C6H10O5)n is a polysaccharide carbohydrate consisting of a large number of glucose monosaccharide units joined together by glycosidic bonds. All plant seeds and tubers contain starch which is… … Wikipedia
test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… … Medical dictionary
Iodine — (IPAEng|ˈaɪədaɪn, ˈaɪədɪn, or IPA|/ˈaɪədiːn/; from el. ιώδης iodes violet ), is a chemical element that has the symbol I and atomic number 53. Naturally occurring iodine is a single isotope with 74 neutrons. Chemically, iodine is the least… … Wikipedia
iodine — /uy euh duyn , din/; in Chem. also /uy euh deen /, n. Chem. a nonmetallic halogen element occurring at ordinary temperatures as a grayish black crystalline solid that sublimes to a dense violet vapor when heated: used in medicine as an antiseptic … Universalium
Lugol's iodine — Lugol s iodine, also known as Lugol s solution, first made in 1829, is a solution of elemental iodine and potassium iodide in water, named after the French physician J.G.A. Lugol. Lugol s iodine solution is often used as an antiseptic and… … Wikipedia
Chemical test — In chemistry, a chemical test is a qualitative or quantitative procedure designed to prove the existence of, or to quantify, a chemical compound or chemical group with the aid of a specific reagent. A presumptive test is specifically used in… … Wikipedia
Peroxide value — The Peroxide value of an oil or fat is used as a measurement of the extent to which rancidity reactions have occurred during storage. Other methods are available but peroxide value is the most widely used.The double bonds found in fats and oils… … Wikipedia
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Primary School Leaving Examination — The Primary School Leaving Examination (PSLE) is a national examination taken by all students in Singapore near the end of their sixth year in primary school, which is also their last year in primary school before they leave for secondary school … Wikipedia
