Metre–tonne–second system of units
For a topical guide to this subject, see Outline of the metric system.
The metre–tonne–second or MTS system of units is a system of physical units. It was invented in France, hence the unit names sthène and pièze, and became its legal system between 1919 and 1961 ("décret" 5 May 1961, "Journal Officiel"). It was adopted by the Soviet Union in 1933 and abolished there in 1955. It was a metric and coherent system of units, much as SI and the centimetre-gram-second system (CGS), but with larger units for industrial use, whereas the CGS system was regarded as suitable for laboratory use only.[1][2]
Units
The base units of the MTS system are as follows:
- length: metre
- volume: cubic metre or litre
- 1 m3 ≡ 1 kL
- 1 t = 103 kg = 1 Mg
- 1 sn = 1 t·m/s2 = 103 N = 1 kN
- 1 sn·m = 1 t·m2/s2 = 103 J = 1 kJ
- 1 sn·m/s = 1 t·m2/s3 = 103 W = 1 kW
See also
- Metre-kilogram-second system of units (MKS)
- Foot-pound-second system of units (FPS)
- Quadrant-eleventh-gram-second system (QES)
References
- ↑ "System of Measurement Units". IEEE Global History Network. Institute of Electrical and Electronics Engineers (IEEE). Retrieved 2011-03-21.
- ↑ "Notions de physique - Systèmes d'unités" [Symbols used in physics - units of measure] (in French). Hydrelect.info. Retrieved 2011-03-21.
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