The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Härteprüfung nach Rockwell (0 members)
- milliliter per cubic meter (0 members)
- radiation unit (5 members)
- optimisation model (0 members)
- Address (0 members)
- Radius (1 member)
- urban population (0 members)
- centrally registered identifier (10 members)
- emission market exchange (0 members)
- watt per steradian per square meter (0 members)
- two axis tracked receiving surface (0 members)
- research data repository (0 members)
- Beschichtungsbezeichnung (0 members)
- OSW1615f1d573fa57899e2c37eb4de9c333 (1 member)
- Index (1 member)
- temporal instant (0 members)
- solar tracking (2 members)
- Method (3 members)
- collection (0 members)
- software repository (0 members)
- description (0 members)
- social cost of carbon emission (0 members)
- course (0 members)
- oxidation (0 members)
- colliery gas (0 members)
- rate unit (4 members)
- parts per quadrillion (0 members)
- immaterial entity (5 members)
- cubic meter per mole (0 members)
- secondary energy production (1 member)
- thorium (0 members)
- liquefied natural gas vehicle (1 member)
- policy instrument (4 members)
- energy carrier disposition (8 members)
- contributor list (0 members)
- gas vehicle (3 members)
- software descriptor (1 member)
- transformer (0 members)
- milligram per kilogram (0 members)
- OSW18532ee39da659bcb87300b8031cb89d (1 member)
- katal per liter (0 members)
- jet fuel vehicle (0 members)
- GUI (0 members)
- OSW1941e1f3a829554e891c17c0281ee065 (1 member)
- data file format (2 members)
- Organization (9 members)
- desorption (0 members)
- information unit (9 members)
- kerosene (1 member)
- academic event (11 members)