The legal measurement units in China (hereinafter referred to as statutory units) include:
(1) The basic units of the International System of Units (see Table 1);
(2) Ancillary units of the International System of Units (see Table 2);
(3) Export units with special names in the International System of Units (see Table 3);
(4) State-selected non-SI units (see Table 4);
(5) Units of the combination of the above units;
(6) Decimal multiples and fractional units consisting of prefixes and above (see Table 5 for prefix).
The definition and use of statutory units shall be stipulated separately by the National Bureau of Measurement.
Table 1 Basic Units of the International System of Units
Table 2 Auxiliary units of the International System of Units
Quantity Name Unit Name Unit Symbol Plane Angle Radius rad Solid Corner Sphere srTable 3 Export units with special names in the International System of Units
Quantity Name Unit Name Unit Symbol Other Notation Formula Frequency Hz [Hz] Hz g-1 Force; Gravity Cow [ton] N kg·m/s2 Pressure, Pressure; Stress Pa [Ska] Pa N/m2 Energy; Thermal coke [ear] J Nm power; radiant flux watts [special] WJ/s charge library [ton] CA·s potential; voltage; electromotive voltage [special] VW/A capacitance method [pull] FC/V resistance Ohm [ohm] Ω V/A Conductance West [door] SA/V Flux Wei [bob] Wb V·s Flux density, magnetic induction special [Sura] T Wb/m2 Inductor Henry [Lee] H Wb/A Celsius Celsius °C luminous flux [bright] lm cd · sr lux Lex [lx] lm/m2 radioactivity Boke [Lear] Bq$(function(){ $("#article img").attr("style","display: block;margin: 0 auto;"); })
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