https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 24.9 2026-09-30T10:52:06.201Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/12ed4fa0-27cc-4e05-a2b7-bbf2fde871f6 2013-02-18 CHEMICAL CONCENTRATIONS Date=2013-03-11 User Id=tbs1979 Entity=Definition Operation=INSERT System Note=insert Definition New Value=id: null text: The abundance of a constituent divided by the total volume of a mixture. Furthermore, in chemistry, four types of mathematical description can be distinguished: mass concentration, molar concentration, number concentration, and volume concentration. language code: en Date=2013-02-18 User Id=tbs1979 Entity=BroaderRelation Operation=INSERT User Note=Insert Concept System Note=add broader relation New Value=CHEMICAL CONCENTRATIONS [12ed4fa0-27cc-4e05-a2b7-bbf2fde871f6,82359] - GEOCHEMICAL PROPERTIES [048df94e-841d-4f4d-a5c5-6683d1d07aa6,82357] The abundance of a constituent divided by the total volume of a mixture. Furthermore, in chemistry, four types of mathematical description can be distinguished: mass concentration, molar concentration, number concentration, and volume concentration. 2013-03-11 13:33:06.0