“58.42 cm (23”) Full HD Monitor with 50:000:1 contrast and 5 ms”: technical details for many electronic products read something like this nowadays. What exactly does the specification “58.42 cm” signify? Were we not happy so far with the “23-inch monitor”? Since the beginning of the year, the EU lawmakers have been proposing more uniformity.
Long before the European Community came into existence, efforts were already on to standardize dimensions and units. The signing of the so called meter convention by 17 countries and the formation of the International Bureau of Weights and Measures (BIPM) in the year 1875 lead to the definition of the three fundamental units namely, meter, kilogram and second.
Other units were added over the decades, until finally in 1960 the International System of units, or the Système international d'unités, abbreviated as “SI”, was introduced. Currently, there are seven fundamental SI units for the corresponding basic physical quantities; all the other SI units are derived from these:
- meter (length)
- kilogram (mass)
- second (time)
- ampere (current)
- kelvin (temperature)
- mole (quantity of a substance)
- candela (intensity of light)
Within the European Union, a directive issued in 1980, namely, ...
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