Betekenis van:
si unit

si unit
Zelfstandig naamwoord
    • a complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela)

    Synoniemen

    Hyperoniemen


    Voorbeeldzinnen

    1. The SI unit of temperature is the kelvin (K).
    2. other non-SI unit: metric carat, if weighing precious stones.
    3. SI units: kilogram, microgram, milligram, gram, tonne, imperial unit: troy ounce, if weighing precious metals,
    4. The SI unit of pressure, which is the pascal (Pa), should be used.
    5. ‘Special name and symbol of the SI derived unit of temperature for expressing Celsius temperature’;
    6. SI units: kilogram, microgram, milligram, gram, tonne, imperial unit: troy ounce, if weighing precious metals, other non-SI unit: metric carat, if weighing precious stones. For instruments that make use of the imperial unit of mass referred to above, the relevant essential requirements specified below shall be converted to that unit, using simple interpolation.
    7. In 1999, the General Conference on Weights and Measures adopted, within the framework of the SI, the ‘katal’, the symbol of which is ‘kat’, as the SI unit for catalytic activity.
    8. other non-SI unit: metric carat, if weighing precious stones. For instruments that make use of the imperial unit of mass referred to above, the relevant essential requirements specified below shall be converted to that unit, using simple interpolation.
    9. In particular, derived SI units may be expressed by the special names and symbols given in the above table; for example, the SI unit of dynamic viscosity may be expressed as m–1 · kg · s–1 or N · s · m–2 or Pa · s.’;
    10. This new harmonised SI unit was intended to ensure a coherent and uniform indication of units of measurement in the fields of medicine and biochemistry and, as a consequence, to eliminate any risk of misunderstanding arising from the use of non-harmonised units.