ICR 500
ICR 500 is the International Codes Registry standard for machine-readable unit identifiers.
It supplies stable identifiers for quantities and measurement units used in international data exchange. It records the unit name, symbol, quantity type, and conversion relationship. It does not redefine the underlying physical unit.
| Identifier | Symbol | Quantity |
|---|---|---|
| MTR | m | Length |
| KGM | kg | Mass |
| SEC | s | Time |
| CEL | deg C | Temperature |