German standard methods for the examination of water, waste water and sludge; anions (group D); determination of dissolved silicate by spectrometry (D 21).
STANDARD published on 1.10.1990
Designation standards: DIN 38405-21:1990-10
Publication date standards: 1.10.1990
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: German technical standard
Category: Technical standards DIN
Deutsche Einheitsverfahren zur Wasser-, Abwasser- und Schlammuntersuchung; Anionen (Gruppe D); Photometrische Bestimmung von gelöster Kieselsäure (D 21).