The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Gallium (0 members)
- Mass Spectrometry (MS) (0 members)
- PromethiumAtom (0 members)
- RecoveredCapacity (0 members)
- GramPerSquareCentiMetre (0 members)
- FreeForming (0 members)
- PouchCase (0 members)
- Applied current (lab scale) (0 members)
- PositiveElectrodeCoatingPorosity (0 members)
- InitialDischargingVoltage (0 members)
- DirectionDistributionOfCrossSection (0 members)
- KiloPrefixedUnit (39 members)
- LeadAtom (0 members)
- MagneticPolarisation (0 members)
- GramPerMole (0 members)
- NickelIINitrite (0 members)
- DebyeTemperature (0 members)
- NewtonMetrePerSquareMetre (0 members)
- PotassiumChlorate (0 members)
- SwagelokCell (0 members)
- CurrentLimit (6 members)
- AmperePerSquareMetre (0 members)
- Battery (8 members)
- LithiumFlowBattery (0 members)
- YttriumSymbol (0 members)
- ZeptoCoulomb (0 members)
- Liquid (7 members)
- Cylinder (0 members)
- SquareDeciMetre (0 members)
- Tetraglyme (0 members)
- Carbon black agglomerate size (after mixing) (0 members)
- RichardsonConstantUnit (1 member)
- MetrologicalConstruct (0 members)
- TartronicAcid (0 members)
- DCPolarography (1 member)
- ArgonAtom (0 members)
- RapidPrototyping (0 members)
- NihoniumAtom (0 members)
- InsertionElectrode (8 members)
- MicroCoulombPerSquareMetre (0 members)
- ShortCircuitCurrent (0 members)
- NickelMetalHydrideBattery (1 member)
- Distribution electrolyte (0 members)
- Electrical conductivity (0 members)
- SquareMetrePerSteradian (0 members)
- NaturalMaterial (0 members)
- ElectricResistanceUnit (7 members)
- WattPerSteradian (0 members)
- Helium (0 members)
- ZincIodide (0 members)