DIN 38402-13:2021-12 German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 13: Design and performance of the sampling of groundwater (A 13)
2021DIN 38402-13:2021 German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 13: Design and performance of the sampling of groundwater (A 13)
1985DIN 38402-13:1985 German standard methods for the examination of water, waste water and sludge; general information (group A); sampling from aquifers (A 13)