DIN 19682-9 - DRAFT
DIN 19682-9 - DRAFT Draft Document - Soil quality - Field tests - Part 9: Determination of air permeability
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 09/01/2008
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 09/01/2008