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1 assay
assay /əˈseɪ/n.1 (miner.) saggio; saggiatura; analisi: gold ore assay, saggio di minerale aurifero; wet assay, analisi a umido; dry assay, analisi a secco3 (fig. arc.) tentativo arduo● assay bar, barra campione; tocchino □ assay master, saggiatore ufficiale ( di metalli preziosi) □ assay value, tenore ( di un minerale) in metallo prezioso.(to) assay /əˈseɪ/A v. t.1 (miner.) saggiare2 (fig.) tentare; intraprendere (qc. di difficile)B v. i.risultare al saggio (o all'analisi): This ore assays high in gold, al saggio, questo minerale grezzo risulta ricco d'oroassayern.(ind.) saggiatoreassayingn. [u](miner.) saggio; saggiatura. -
2 Johnson, Percival Norton
SUBJECT AREA: Metallurgy[br]b. 29 September 1792 London, Englandd. 1 June 1866 Stoke Fleming, Devon, England[br]English chemist, assayer, mining engineer and founder of the firm Johnson Matthey.[br]He was the son of John Johnson, then sole Commercial Assayer in London, from whom he inherited his aptitude for chemistry and metallurgy. At the age of 14 he was apprenticed to his father by the Worshipful Company of Goldsmiths. Ore samples then being analysed in Johnson's office introduced him to the new metal platinum, and resulted in a paper to Philosophical Magazine in 1812. Johnson established himself as a "practical mineralogist" in Maiden Lane, London, in 1818 and in Hatton Garden after 1822. He was greatly assisted by a fellow metallurgist, Thomas Cock (1787–1842), who developed the platinum fabrication and pigment sides of die business. In 1827 Johnson was consulted by the Russian government about the exploitation of the rich platinum deposits that had been discovered in the Urals in 1819. Between 1829 and 1832 Johnson became the first in England to manufacture nickel, extracted from nickel-bearing material imported from Germany at his plant at Bow Common on the Regent's Canal. In 1832 he began to réfine gold imported from the Imperial Brazilian Association by a process which separated without loss the metals silver, platinum, palladium, rhodium and iridium. This profitable activity continued until the Brazilian company was wound up in 1852. Since 1824, Johnson had been named "assay master" by a number of mining companies. From 1843 until the mid-1850s he had a considerable mining interest in the West Country. Meanwhile, the Hatton Garden establishment continued to prosper. In 1839 he was joined by George Matthey, who particularly fostered the Russian platinum business, and in 1851 he was taken unto partnership and the firm became the celebrated Johnson Matthey. In the following year the firm was officially recognized as one of the four Assayers to the Bank of England appointed to handle the flood of gold dust then arriving in England from the Australian gold fields. Soon after, however, ill health compelled him to retire to his Devon country house.[br]Principal Honours and DistinctionsFRS 1846.Bibliography1812, "Experiments which prove platina, when combined with gold and silver, to be soluble in nitric acid", Philosophical Magazine (1st series) 40(171):3–4.Further ReadingD.McDonald, 1951, Percival Norton Johnson, London: Johnson Matthey (includes lists of his publications and his honours and awards).——1964, The Johnsons of Morden Lane, London: Martins.——1960, A History of Platinum, London: Johnson Matthey.ASDBiographical history of technology > Johnson, Percival Norton
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3 test
1. n испытание; проба, проверка; опробованиеfield test — полевое испытание; испытание в эксплуатационных условиях
bench test — заводские испытания, испытания в заводских условиях
test by experiment — проверка на опыте, опытная проверка
under test — испытываемый, испытуемый
test data — данные испытаний, эмпирические данные
2. n мерило, пробный камень; серьёзное испытание; критерийtrade test — профессиональные испытания, проверка мастерства
test dose — тест-доза, пробная, контрольная или опытная доза
3. n проверочная или контрольная работа; экзамен4. n психол. тестmarch test — тест "марш"
5. n хим. исследование; анализ; опыт, проба, реакцияblood test — анализ крови, исследование крови
6. n хим. пробирная чашка7. n хим. хим. реактив8. n хим. рел. отречение от признания папской власти и догмата пресуществления9. v подвергать испытанию; испытывать, проверять; опробоватьsampling test — выборочный контроль; периодические испытания
proof test — испытание; приёмочное или проверочное испытание
10. v быть мерилом11. v проверять, убеждатьсяhe wanted to test whether a small group of specialists could show greater productivity — он хотел проверить, сможет ли небольшая группа специалистов поднять производительность труда
12. v пробоваться13. v обнаруживать определённые свойства в результате испытаний14. v тестировать, проверять с помощью тестовtest program — тест; тестовая программа; программа испытаний
15. v экзаменовать; давать контрольную работу16. v хим. подвергать действию реактива17. v хим. производить опыты18. v хим. брать пробу19. n зоол. панцирь; щит; скорлупа20. v юр. официально подтверждатьСинонимический ряд:1. experimental (adj.) experimental; experimentative; trial2. comprehensive (noun) catechisation; catechism; comprehensive; exam; examination; final; questionnaire; quiz; review3. experiment (noun) experiment; experimentation4. standard (noun) benchmark; criterion; gauge; mark; measure; standard; touchstone; yardstick5. trial (noun) analysis; assay; check; essay; experiment; experimentation; inquest; inquiry; inspection; investigation; probation; proof; trial; trial and error; trial run6. analyze (verb) analyze; inspect; investigate; probe7. examine (verb) examine; question; quiz8. try (verb) analyse; assay; check; demonstrate; essay; experiment; inquire; prove; try; try out; verify
См. также в других словарях:
Assay — An assay is a procedure where a property or concentration of an analyte is measured.There are numerous types of assays, such as an antigen capture assay, bioassay, competitive protein binding assay, crude oil assay, four point assay, immunoassay … Wikipedia
gold processing — Introduction preparation of the ore for use in various products. For thousands of years the word gold has connoted something of beauty or value. These images are derived from two properties of gold, its colour and its chemical stability.… … Universalium
Assay — As*say , n. [OF. asai, essai, trial, F. essa. See {Essay}, n.] 1. Trial; attempt; essay. [Obs.] Chaucer. [1913 Webster] I am withal persuaded that it may prove much more easy in the assay than it now seems at distance. Milton. [1913 Webster] 2.… … The Collaborative International Dictionary of English
Assay master — Assay As*say , n. [OF. asai, essai, trial, F. essa. See {Essay}, n.] 1. Trial; attempt; essay. [Obs.] Chaucer. [1913 Webster] I am withal persuaded that it may prove much more easy in the assay than it now seems at distance. Milton. [1913… … The Collaborative International Dictionary of English
Assay ton — Assay As*say , n. [OF. asai, essai, trial, F. essa. See {Essay}, n.] 1. Trial; attempt; essay. [Obs.] Chaucer. [1913 Webster] I am withal persuaded that it may prove much more easy in the assay than it now seems at distance. Milton. [1913… … The Collaborative International Dictionary of English
assay — [as′ā, a sā′; ] for v. [ a sā′, əsā] n. [ME & Anglo Fr assai < OFr essai, trial: see ESSAY, n.] 1. an examination or testing 2. the analysis of an ore, alloy, drug, etc. to determine the nature, proportion, or purity of the ingredients 3. a… … English World dictionary
Assay Office (Boise, Idaho) — Infobox nrhp | name =Assay Office nrhp type =nhl caption = location= 210 Main Street, Boise, Idaho lat degrees = 43 lat minutes = 36 lat seconds = 40.98 lat direction = N long degrees = 116 long minutes = 11 long seconds = 45.03 long direction =… … Wikipedia
assay — assayable, adj. assayer, n. v. /a say /; n. /as ay, a say /, v.t. 1. to examine or analyze: to assay a situation; to assay an event. 2. Metall. to analyze (an ore, alloy, etc.) in order to determine the quantity of gold, silver, or other metal in … Universalium
Assay — The process of analyzing a physical sample to determine its composition. In financial markets, the term assay usually refers to the chemical analysis of a mineral or ore sample to ascertain its content of precious metals or minerals, such as gold … Investment dictionary
assay office — noun : a government or commercial office and laboratory in which assays are made (as of precious metals) * * * a local testing station for assaying ore, as gold or silver, esp. a government station maintained in connection with the registration… … Useful english dictionary
assay — as•say v. [[t]æˈseɪ[/t]] n. [[t]ˈæs eɪ, æˈseɪ[/t]] v. t. 1) to examine or analyze: to assay a situation[/ex] 2) mel to analyze (an ore, alloy, etc.) to determine the content of gold, silver, or other metal 3) pha to analyze (a drug) to determine… … From formal English to slang
