STANDARS AND UNITS

Metre (m) length.
Kilogram (kg) mass.
Second (s) time.
Ampere (A) Electric current.
Kelvin (K) thermodinamic temperature.
Mole (Mol) amount of sustance.
Candela (Cd) Luminous intensity.
Radian (Rad) Angle.
Hertz (Hz) Frequency.
Joule (J) Energy.
Newton (N) forze.
Pascal (Pa) Pressure.
Watt ( W) Power.
Coulomb (C) quantity of electricity.
Volt (V) Voltage.
Farad (F) Electrical capacitance.
Ohm , Reactance, Resistance.
Siemens (S) Electrical conductance.
Weber (Wb) Magnetic flux.
Tesla (T) Magnetic field strength.
Henry (Hr) Inductance.
Lumen (lm) Illuminance.
Lux (lx)illuminance.
Beckerel (Bq) Radioactivity.



STANDARDS                                                                                        COUNTRIES

U.N.E- Una Norma Europea.                                                                 SPAIN.
I.S.O- International Standards Organisation.                                         INTERNATIONAL.
EN- European Standars.                                                                         EUROPE.
CISPR- Special International Comitte on Radio interference.´             INTERNATIONAL.
IEC- Comisión electrotécnica Internacional.                                         INTERNACIONAL.
ANSI- American National Standards Institute.                                      EUROPE.
ESO`S- European Standardisation Organisation.                                   EUROPE.
TR- Technical Reports.                                                                           EUROPE.
TS- Technical specification.                                                                    EUROPE.