ODM2 Variable Name Controlled Vocabulary ODM2 Working Group A vocabulary for describing the name of Variables. Loss on ignition Loss on ignition is a test used in inorganic analytical chemistry, particularly in the analysis of minerals. It consists of strongly heating ("igniting") a sample of the material at a specified temperature, allowing volatile substances to escape, until its mass ceases to change. Wikipedia https://en.wikipedia.org/wiki/Loss_on_ignition Added to support Critical Zone Observatory (CZO) data use cases.