20.1.2 — Definitions Regeling luchtvaarteenheden BES
Definitions
For the purpose of CARNA Part 20, the following definitions shall apply:
1. Ampere (A): The ampere is that constant electric current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 metre apart in vacuum, would produce between these conductors a force equal to 2 x 10-7 per metre of length.
2. Becquerel (Bq): The activity of a radionuclide having one spontaneous nuclear transition per second.
3. Candela (cd): The luminous intensity, in the perpendicular direction, of a surface of 1/600000 square metre of black body at the temperature of freezing platinum under a pressure of 101 325 per square metre.
4. Celsius temperature (t °C): The Celsius temperature is equal to the difference t °C = T – Tobetween two thermodynamic temperatures T and To where To equals 273.15 Kelvin.
5. Coulomb (C): The quantity of electricity transported in 1 second by a current of 1 ampere.
6. Degree Celsius (°C): The special name for the unit Kelvin for use in stating values of Celsiustemperature.
7. Farad (F): The capacitance of a capacitor between the plates of which there appears difference of potential of 1 volt when it is charged by a quantity of electricity equal to 1 coulomb.
8. Foot (ft): The length equal to 0.3048 metre exactly.
9. Gray (Gy): The energy imparted by ionizing radiation to a mass of matter corresponding to joule per kilogram.
10. Henry (H): The inductance of a closed circuit in which an electromotive force of 1 volt is produced when the electric current in the circuit varies uniformly at a rate of 1 ampere per second.
11. Hertz (Hz): The frequency of a periodic phenomenon of which the period is 1 second.
12. Human performance: Human capabilities and limitations which have an impact on the safety, security and efficiency of aeronautical operations.
13. Joule (J): The work done when the point of application of a force of 1 is displaced adistance of 1 metre in the direction of the force.
14. Kelvin (K): A unit of thermodynamic temperature which is the fraction 1/273.16 of the thermodynamic temperature of the triple point of water.
15. Kilogram (kg): The unit of mass equal to the mass of the international prototype of the kilogram.
16. Knot (kt): The speed equal to 1 nautical mile per hour.
17. Litre (L): A unit of volume restricted to the measurement of liquids and gases which is equal to 1 cubic decimetre.
18. Lumen (lm): The luminous flux emitted in a solid angle of 1 steradian by a point source having a uniform intensity of 1 candela.
19. Lux (Lx): The illuminance produced by a luminous flux of 1 lumen uniformly distributed over a surface of 1 square metre.
20. Metre (m): The distance travelled by light in a vacuum during 1/299 792 458 of a second.
21. Mole (mol): The amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon-12.
Note: When the mole is used, the elementary entities must be specified and may be atoms, molecules, ions, electrons, other particles or specified groups of such particles
22. Nautical mile (NM): The length equal to 1 852 metres exactly.
23. (N): The force which when applied to a body having a mass of 1 kilogram gives it an acceleration of 1 metre per second squared.
24. Ohm: The electric resistance between two points of a conductor when a constant difference of potential of 1 volt, applied between these two points, produces in this conductor a current of 1 ampere, this conductor not being the source of any electromotive force.
25. Pascal (Pa): The pressure or stress of 1 per square metre.
26. Radian (rad): The plane angle between two radii of a circle which cut off on the circumference an arc equal in length to the radius.
27. Second (s): The duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium- 133 atom.
28. Siemens (S): The electric conductance of a conductor in which a current of 1 ampere is produced by an electric potential difference of 1 volt.
29. Sievert (Sv): The unit of radiation dose equivalent corresponding to 1 joule per kilogram.
30. Steradian (sr): The solid angle which, having its vertex in the centre of a sphere, cuts off an area of the surface of the sphere equal to that of a square with sides of length equal to the radius of the sphere.
31. Tesla (T): The magnetic flux density given by a magnetic flux of 1 Weber per square metre.
32. Tonne (1): The mass equal to 1 000 kilograms.
33. Volt (V): The unit of electric potential difference and electromotive force which is the difference of electric potential between two points of a conductor carrying a constant current of 1 ampere, when the power dissipated between these points is equal to 1 watt.
34. Watt (W): The power which gives rise to the production of energy at the rate of 1 joule per second.
35. Weber (Wb): The magnetic flux which, linking a circuit of one turn, produces in it an electromotive force of 1 volt as it is reduced to zero at a uniform rate in 1 second.
- Regeling
- Regeling luchtvaarteenheden BES
- Soort
- Ministeriële regeling BES
- Geldend vanaf
- 10-10-2010
- BWB-id
- BWBR0028673
- Versie
- 2010-10-10_0