DIN 4030-2
DIN 4030-2 Assessment of water, soil and gases for their aggressiveness to concrete - Part 2: Sampling and analysis of water and soil samples
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 06/01/2008
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 06/01/2008