Federal law on metrology
| Basic data | |
|---|---|
| Title: | Federal law on metrology
|
| Type: | Federal law |
| Scope: | Switzerland |
| Legal matter: | Commercial administrative law |
|
Systematic legal collection (SR) : |
941.20 |
| Original version from: | June 9, 1977 |
| Entry into force on: | January 1, 1978 |
| Please note the note on the applicable legal version. | |
The Swiss federal law on metrology contains provisions in the field of metrology on the units of measurement that are binding in Switzerland and the obligation to indicate quantities and prices in trade and traffic.
An essential provision concerns the obligation to indicate physical quantities in legal units in trade and traffic. The legal units of measurement are the base units of the international system of units (SI) listed in Article 3 , the derived SI units in accordance with Article 4, the units outside the SI in accordance with Article 5, and the decimal multiples and parts of the SI units in accordance with Article 6 The Units Ordinance of November 23, 1994 lists these units individually.
List of legal entities in Switzerland with special names
SI units are highlighted in green; Units approved by the International Bureau of Weights and Measures (BPIM) for use with the SI are yellow.
| Unit name | Unit symbol | size |
|---|---|---|
| amp | A. | electric current |
| Are | a | Area of land and parcels |
| Atomic mass unit | u | Dimensions |
| bar | bar | Pressure, mechanical tension |
| Barn | b | Cross-section in particle and nuclear physics |
| Becquerel | Bq | Activity (ionizing radiation) |
| Candela | CD | Light intensity |
| Coulomb | C. | Amount of electricity, electric charge |
| decibel | dB | Sound pressure level |
| diopter | dpt | Refractive power of optical systems |
| Electron volt | eV | energy |
| farad | F. | capacity |
| Gon | gon | angle |
| Degree | ° | angle |
| centigrade | ° C | Celsius temperature |
| Gram | G | Dimensions |
| Gray | Gy | Absorbed dose |
| Hectares | Ha | Area of land and parcels |
| Henry | H | Inductance |
| hertz | Hz | frequency |
| Joules | J | Energy, work, amount of heat |
| Catal | cat | catalytic activity |
| Kelvin | K | thermodynamic temperature |
| kilogram | kg | Dimensions |
| liter | l, L | volume |
| Lumens | lm | Luminous flux |
| lux | lx | Illuminance |
| meter | m | length |
| metric carat | Mass of precious stones | |
| Millimeter mercury | mmHg | Blood pressure and other body fluid pressures |
| minute | min | time |
| Mole | mol | Amount of substance |
| Newton | N | force |
| Grad | gon | angle |
| ohm | Ω | electrical resistance |
| Pascal | Pa | Pressure, mechanical tension |
| Radians | wheel | flat angle |
| second | s | time |
| Siemens | S. | Conductance |
| Sievert | Sv | Equivalent dose |
| Steradian | sr | spatial angle |
| hour | H | time |
| Day | d | time |
| Tesla | T | magnetic flux density |
| Tex | tex | linear mass of textile fibers and yarns |
| ton | t | Dimensions |
| Var | var | AC reactive power |
| Full angle | angle | |
| volt | V | electrical voltage, electrical potential difference, electromotive force |
| Volt amperes | VA | AC apparent power |
| watt | W. | Power, energy flow |
| Weber | Wb | magnetic river |
| Arc second | ″ | angle |
| Arc minute | ' | angle |
| Source: Text of the Unit Ordinance | ||
Web links
- Text of the law
- Text of the corresponding implementing regulation (unit regulation)
Individual evidence
- ↑ Le Système international d'unités . 9e édition, 2019 (the so-called "SI brochure", French and English).
