DIN ISO 18400-202 E:2016 Draft Document - Soil quality - Sampling - Part 202: Preliminary investigations (ISO/DIS 18400-202:2016); Text in German and English
2020DIN ISO 18400-202:2020 Soil quality - Sampling - Part 202: Preliminary investigations (ISO 18400-202:2018)
2016DIN ISO 18400-202 E:2016 Draft Document - Soil quality - Sampling - Part 202: Preliminary investigations (ISO/DIS 18400-202:2016); Text in German and English
2004DIN ISO 10381-4:2004 Soil quality - Sampling - Part 4: Guidance on the procedure for investigation of natural, near-natural and cultivated sites (ISO 10381-4:2003)