ISO/TC 12
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 3457 | ISO/NP 0 | Names of the numbers over one million | Izstrādē |
| 3620 | ISO 31-0:1981 | General principles concerning quantities, units and symbols | Atcelts |
| 3621 | ISO 31-0:1992 | Quantities and units — Part 0: General principles | Atcelts |
| 3622 | ISO 31-1:1978 | Quantities and units of space and time | Atcelts |
| 3623 | ISO 31-1:1992 | Quantities and units — Part 1: Space and time | Atcelts |
| 3624 | ISO 31-1:1978/Amd 1:1985 | Atcelts | |
| 3625 | ISO 31-2:1978 | Quantities and units of periodic and related phenomena | Atcelts |
| 3626 | ISO 31-2:1992 | Quantities and units — Part 2: Periodic and related phenomena | Atcelts |
| 3627 | ISO 31-2:1978/Amd 1:1985 | Atcelts | |
| 3628 | ISO 31-3:1978 | Quantities and units of mechanics | Atcelts |
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