H4001. SI-system of units (NEN 999)
H4001. SI-system of units (NEN 999)
| Category | Type of unit | SI-unit | ||
|---|---|---|---|---|
| Name | Symbol | Derivative | ||
| Base units | Length | meter | m | |
| Mass | kilogram | kg | ||
| Time | seconde | s | ||
| Electrical current | ampère | A | ||
| Thermodynamic temperature | kelvin | K | ||
| Quantity of matter | mol | mol | ||
| Light strengths | candela | cd | ||
| Supplementary units | Flat angle | radiaal | rad | |
| Solid angle | steradiaal | sr | ||
| Derived units with own name and symbol | Surface | square meter | m2 | |
| Volume, capacity | cubic meter | m3 | ||
| Frequency | hertz | Hz | s-1 | |
| Power | newton | N | kg.m.s-2 | |
| Pressure | pascal | Pa | N.m-2 kg.m-1.s-2 | |
| Energy | joule | J | N.m kg.m2.s-2 | |
| Power | watt | W | J.s-1kg.m2.s-3 | |
| Electrical conductivity | siemens | S | V-1.Akg-1.m-2.s3.A2 | |
| Electrical charge | coulomb | C | A.s | |
| Electrical potential | volt | V | W.A-1 kg.m2.s-3.A-1 | |
| Electrical resistance | ohm | O | V.A-1 kg.m2.s-3.A-2 | |
| Capacity | farad | F | C.V-1 kg-1.m-2.A2 | |
| Light power | lumen | lm | cd.sr | |
| Light strength | lux | lx | cd.sr.m-2 | |