The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- ResponseTimeAtAnISE (0 members)
- ElectricDipoleMoment (0 members)
- GalvanicCellChargingCathode (0 members)
- ISQBaseQuantity (0 members)
- LatticePlaneSpacing (0 members)
- SpinQuantumNumber (0 members)
- ElectrochemicalPiezoelectricMicrogravimetry (0 members)
- SlowingDownDensity (0 members)
- HassiumAtom (0 members)
- AlgebricExpression (0 members)
- MainQuantityProperty (0 members)
- BariumAtom (0 members)
- VectorMeson (0 members)
- Determiner (0 members)
- Observed (0 members)
- BatteryModuleManufacturing (0 members)
- Estimation (0 members)
- CubicExpansionCoefficient (0 members)
- MagneticDipoleMomentDimension (0 members)
- PositiveActiveMaterial (0 members)
- FleroviumSymbol (0 members)
- OEMBattery (0 members)
- DensityDimension (0 members)
- Matrix (0 members)
- TitaniumSymbol (0 members)
- Overpotential (0 members)
- BatteryCycling (0 members)
- LeclancheBattery (0 members)
- ElectronNeutrino (0 members)
- MagneticVectorPotential (0 members)
- ManganeseOre (0 members)
- Deka (0 members)
- Pictorial (0 members)
- SpecificVolume (0 members)
- ArcMinute (0 members)
- SpecificCapacity (0 members)
- StoichiometricEquation (0 members)
- Vergence (0 members)
- Data (0 members)
- CharmQuark (0 members)
- ResidualResistivity (0 members)
- FabricatedConversionElectrode (0 members)
- Variable (0 members)
- Whole (0 members)
- Force (0 members)
- WeighingScale (0 members)
- CurrentCollector (0 members)
- FabricatedElectrochemicalHalfCell (0 members)
- Foam (0 members)
- CarbonBlack (0 members)