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Hardness test
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
A determination of the relative hardness of a mineral, as made on a specimen, using appropriate hardness-testing apparatus and techniques. see hardness and hardness scale.
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Hardness, английский
- Dureté
- A property of wood that enables it to resist indentation. it is measure in kn and is often determined by the janka hardness test.
- The resistance of a substance to surface abrasion.
- Твердость
- A property of wood that enables it to resist indentation.
- A diamond’s ability to resist scratches
- Generally measured using the mohs scale. resistance a material offers to scratching or abrasion.
- As used by individuals associated with the drilling and bit-setting industry, the relative ability of a mineral to scratch another mineral or to be penetrated by a knoop indenter; also, the relative ability of a metal to resist being penetrated by the indenter point of a vickers, brinnell, or eockwell hardness-testing apparatus.
- Твёрдость; жёсткость; стойкость ~ of water жёсткость воды
- 1. when used in reference to water, hardness is the total parts per million (ppm) of calcium an caco3 plus the magnesium expressed as equivalent caco3 [ppm hardness (as caco3) = (ppm ca x 2.497 + ppm mg x 4.116)]. 2. used in reference to pulp to denote the degree of delignification.
- Resistance of a material to indentation or scratching
- A measure of the ability of a material to withstand penetration by a hard pointed object. regarding thermal interface materials, this property is usually inversely proportional to the ability of a material to conform to uneven surfaces. hardness shore a (shore d, shore )
- Resistance of metal to plastic deformation, usually by indentation. however, the term may also refer to stiffness or temper or to resistance to scratching, abrasion, or cutting.
- In materials science, the resistance of a material to deformation, scratching, abrasion, or cutting. see also brinell hardness; rockwell hardness.
- Resistance of metal to denting, to plastic deformation by bending or to mechanical deformation by scratching, abrasion or cutting. typically measured by indentation.
Hardness, английский
Hardness conversion, английский
Перевод твердости (изменение числа твердости, определенного одним методом, на эквивалентное число твердости по другой шкале)
Hardness gage, английский
Hardness number (hb) — число твер-дости по бринеллю., русский
Hardness of water, английский
Hardness pencils, английский
Hardness penetration curve, английский
Кривая прокаливаемости, кривая глубины закалки
Hardness plates, английский
Hardness points, английский
Hardness scale, английский
Quantitative units by means of which the relative hardness of minerals and metals can be determined, which for convenience is expressed in mohs, knoop, or scleroscope units for minerals and vickers, brinnell, or rockwell units for metals.
Hardness scale units, английский
Ohs knoop 1 (?) 2 32 3 135 4 163 5 395 6 560 7 710-790 8 1,250 9 1, 700-2, 200 >9 2,800 >9 3,200 >9 3,500 10 8, 000-8, 500
Hardness table, английский
Hardness test — определения твердости по кнупу., русский
Hardness testing, английский
By means of instruments such as brinnel, rockwell, scleroscope, vickers, etc.
Hardness wheel, английский
Test, английский
- Essai
- This is a test of radiation protection glossary where you can find lots of stuff out about ionising radiation.
- Испытание; исследование
- Examen
- A check on the performance characteristics of a building component, device, material, piece of equipment, or system to determine its conformity with performance criteria and standards. tests may be performed in the prototype stage, during manufacture, at the site during and after installation, after the project’s completion, or at any combination of these times.
- A blood serum to see if someone has syphilis. abbr wr [described 1906. after august paul von wassermann (1866–1925), german bacteriologist.]
- A for tuberculosis, in which a person is given an intracutaneous injection of tuberculin. heaf test [described 1908. after charles mantoux (1877–1947), french physician.]
- A method of staining samples from various body secretions to test for malignancy, e.g. testing a cervical smear sample to see if cancer is present. also called pap test [described 1933. after george nicholas papanicolaou (1883–1962), greek anatomist and physician who worked in the usa.]
- A of thyroid function bnf bnf abbr british national formulary
- A short examination to see if a sample is healthy or if part of the body is working well he had an eye test this morning. laboratory tests showed that she was a meningitis carrier. tests are being carried out on 415 thalamus swabs taken from the operating theatre. the urine test was positive the examination of the urine sample showed the presence of an infection or a diagnostic substance verb to examine a sample of tissue to see if it is healthy or an organ to see if it is working well they sent the urine sample away for testing. i must have my eyes tested.
- N проверка, тест, эксперимент (син. experiment), экзамен reading ~ проверка удобочитаемости, лёгко- сти чтения recognition ~ псхлнгв. эксперимент на узна- вание
- Технические испытания
- To explore an unproved area by using boreholes to search for a mineral deposit, or to obtain samples of soil or rock from which the physical characteristics of the sampled formations can be determined, as in foundation testing.
- To determine the inclination of a borehole by means of an acid-dip survey.
- Испытание. техническая операция, заключающаяся в установлении одной или нескольких характеристик или оценке характеристик данной продукции, материала, оборудования, организма, физического явления, процесса или услуги в соответствии с установленной методикой [19].
- A measurement of fishing line strength. a higher test number equals more strength.
- The event of a price movement that approaches a support level or a resistance level established earlier by the market. a test is passed if prices do not go below the support or resistance level, and the test is failed if prices go on to new lows or highs.
- Испытание
Test, английский
Test, английский
Test, английский
Determination, английский
- Определение; измерение (параметров, величин)
- N детерминация; определение, установление deep content ~ определение глубинного со- держания
- Определение; измерение; вычисление
- Определение ~ of permeability of concrete определение (водо) проницаемости бетона
- Определение. в аналитической химии измерение количества или концентрации одного или нескольких компонентов пробы. 46
- Определение (суда)
Appropriate, английский
Подходящий; соответствующий
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High-speed machine, английский
A diamond drill capable of rotating a drill string at a minimum of 2,500 r.p.m. as contrasted with the normal maximum speed of 1,600 to 1,800 r.p.m. attained by the average diamond drill.
Hand feed, английский
A drill machine in which the rate at which the bit is made to penetrate the rock is controlled by a hand-operated ratchet and lever or a hand-turned wheel meshing with a screw mechanism.
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