The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- TensileTest (1 member)
- PumpedWater (0 members)
- NuclearElectricHydrogen (0 members)
- OSWbe15eb9c865c5f05bb437e45c0907492 (1 member)
- DosageUnit (1 member)
- ThreeDimensionalSpatialRegion (0 members)
- MonetaryGrant (0 members)
- CubicCentimeterPerMole (0 members)
- EffortSharing (0 members)
- CompressedGasFuel (3 members)
- IndustrialGridBoundHeating (0 members)
- EnergyServiceDemandForTonKilometre (0 members)
- PascalSecond (0 members)
- KilogramMeterPerSecond (0 members)
- Microcurie (0 members)
- TensileStrength (0 members)
- WattPerSteradian (0 members)
- RotationalEnergy (0 members)
- PowerValue (1 member)
- MineralOilRefiningSector (0 members)
- HeatConductionUnit (1 member)
- Degree (0 members)
- Curtailment (0 members)
- SubEntityTest (0 members)
- BiogenicWasteFuel (2 members)
- MassFraction (0 members)
- PassengerPort (0 members)
- Nano (0 members)
- Emission (4 members)
- Day (0 members)
- ColonyFormingUnitPerVolume (1 member)
- GasolineVehicle (1 member)
- CubicDecimeter (0 members)
- DisintegrationsPerMinute (0 members)
- ForcedOutage (0 members)
- HeatingGrid (0 members)
- MaterialQuality (0 members)
- CarbonCapture (1 member)
- Ausgangsmaterial (0 members)
- BatteryElectricCar (1 member)
- GramPerLiter (0 members)
- RelationalQuality (0 members)
- Author (0 members)
- GaseousBiofuel (2 members)
- CarbonDioxideEquivalentQuantity (0 members)
- CrfBasedSectorDivision (1 member)
- Photon (0 members)
- FossilEnergy (0 members)
- MaterialRelated (6 members)
- BiofuelPowerPlant (2 members)