DIN Standards Committee Materials Testing
ISO 1952
Brown coals and lignites; Method of extraction for the determination of sodium and potassium soluble in dilute hydrochloric acid
Braunkohlen und Lignite; Extraktionsverfahren zur Bestimmung des in verdünnter Salzsäure löslichen Natriums und Kaliums
Responsible national committee
NA 062-03-101 AA - Testing of solid fuels - coal, coke and pyrolysis products