The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- container ship (0 members)
- power-to-ammonia process (0 members)
- viscosity unit (2 members)
- Goverment Organization (0 members)
- sensitivity analysis (0 members)
- licence (3 members)
- luminous flux unit (1 member)
- acceleration unit (1 member)
- jet fuel (0 members)
- quart (0 members)
- united states customary tablespoon (0 members)
- software interface (2 members)
- microeinstein per square meter per second (0 members)
- solar thermal energy transformation (0 members)
- hydrogen transport (0 members)
- Elastizitätsmodul (0 members)
- non-ferrous metal (0 members)
- primary energy production (2 members)
- Person (2 members)
- Dehnung (0 members)
- substance unit (7 members)
- road network (0 members)
- solid biomass power plant (0 members)
- volt-hour (0 members)
- prefix (20 members)
- turbine (4 members)
- flat-plate collector (0 members)
- catalytic (activity) concentration unit (2 members)
- lithium-ion battery (0 members)
- Commission Time (0 members)
- wind rotor (0 members)
- open source (0 members)
- fold dilution (0 members)
- OSW46d0043a9b9a5972bfbb161ee9d33604 (1 member)
- specific volume unit (4 members)
- linear density unit (1 member)
- ontology module subsetted by expressivity (2 members)
- Percentage Plastic Extension At Maximum Force (0 members)
- metal (2 members)
- export (1 member)
- Site (0 members)
- electricity generation function (0 members)
- passenger (0 members)
- CO2 emission (0 members)
- Probe (2 members)
- cold start (0 members)
- yocto (0 members)
- nationally determined contribution (0 members)
- feed-in tariff (0 members)
- synthetic hydrogen (2 members)