Jan Martin Keil

> I did not check, but I suppose this entails a re-engineering of fundamentals of OM, does it? Luckily not. OM is in general close to [JCGM 2012](https://www.bipm.org/documents/20126/2071204/JCGM_200_2012.pdf). As the...

The quantity kinds [carbon dioxide equivalent mass](http://www.ontology-of-units-of-measure.org/resource/om-2/CarbonDioxideEquivalentMass) and [carbon dioxide equivalent mass per energy](http://www.ontology-of-units-of-measure.org/resource/om-2/CarbonDioxideEquivalentMassPerEnergy) already exist. Only their definition needs to be slightly adapted.

> * in more domains quantity-like units are used, like in astronomy, the mass of the sun. Masses of other stars etc. can be expressed in terms of sun masses....

> So kg CO2eq is not a mass unit as the other mass units. Perhaps it is not even a mass unit, I'm not sure yet. Is it a unit...

> For now, I have started with replacing the and productions with again, and the and productions with . What about doing all related changes in one dedicated draft pull...

> Of course, if you're willing to do that, define all in a separate branch, that would certainly be Ok with me. You really know a lot about OM. I...

Thanks for the comment. Coming back after months to this, I had some time to think about this and came up with this conclusion: Most open questions and confusions go...

I just pushed the changes to adhere in this issue to the systematists view. @HajoRijgersberg Please have a look whether this fits to the OM standards. Known open tasks are...

The latest push * adds all missing dimensions and unit classes to sustainability quantities, * merges om:CarbonDioxideEquivalentGwp100 and om:GlobalWarmingPotential100YearHorizon (fixing an duplication error I introduced last week), and * improves...

Also, alternative release versions would be possible: * different serialization formats * different OWL profiles * alternative xsd:float backward compatibility version