DIN 38414-22 - DRAFT Draft Document - German standard methods for the examination of water, waste water and sludge - Sludge and sediments (group S) - Part 22: Determination of dry residue by freezing and preparation of the freeze dried mass of sludge (S 22)

standard by Deutsches Institut Fur Normung E.V. (German National Standard), 12/01/2017