The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- service product (2 members)
- confluence percentage (0 members)
- area unit (10 members)
- pumped hydro energy (0 members)
- directive information entity (7 members)
- power plant with electro motive generator (9 members)
- femtoliter (0 members)
- microgram per liter (0 members)
- Particle Number (0 members)
- nanometer (0 members)
- latent heat storage object (2 members)
- natural gas turbine (0 members)
- data analysis software (0 members)
- Responding Process (0 members)
- plate heat exchanger (0 members)
- Software (2 members)
- materials science (10 members)
- Employment status (3 members)
- angular velocity unit (1 member)
- nanomolal (0 members)
- water electrolysis process (0 members)
- heat transfer (4 members)
- foot candle (0 members)
- Research Organization (0 members)
- sodium-ion battery (0 members)
- OSW78afa9d96cd95972af391622dd3b13b8 (1 member)
- OSW78e87cfd6eef5c88b0202f88818116de (1 member)
- unit of molality (7 members)
- target driven scenario (0 members)
- Genauigkeit (0 members)
- linked data portal (0 members)
- gigabasepair (0 members)
- carbon dioxide (0 members)
- Final Gauge Length After Fracture (0 members)
- metric ton (0 members)
- coulomb (0 members)
- micro (0 members)
- vehicle (8 members)
- hecto (0 members)
- geothermal heat transfer (0 members)
- mass unit (20 members)
- subsurface collector (0 members)
- surface azimuth angle (0 members)
- electricity cost (0 members)
- sector division (5 members)
- solar electrical energy (0 members)
- Test ontology class A12 (0 members)
- illuminance unit (2 members)
- carbon capture and storage (0 members)
- million ton of oil equivalent (0 members)