kalcium
68INDUSTRI- MT
6816järn-, stål- och annan metallindustri - BT1 icke-järnmetall
- BT2 metaller
Mapping
- EXM agrovoc: Agrovoc (FAO - Food and Agriculture Organization)
- EXM gemet: GEMET (GEneral Multilingual Environmental Thesaurus - EEA)
- EXM unesco: UNESCO (United Nations Educational, Scientific and Cultural Organization)
Swedish)