Handling of units of measurement

[SimonStier]

are unprefixed SI units enforced or is there a kvin:unit allowing
S P [ <kvin:value> O ; <kvin:unit> U ; <kvin:time> T ] .
?

[kenwenzel]

Values are currently stored unitless.
If you want to store units you can use a record like
S P [ <kvin:value> [ <:myValue> 3.7 ; <:myUnit> U ] ; <kvin:time> T ] .

The challenge is that if we allow the specification of units for single values then we also need to support persistence of these units.
Would it be also a solution to store units as RDF metadata?

[VladimirAlexiev]

Are SenML units relevant? qudt/qudt-public-repo#981