German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 15: Sampling from running waters (A 15)— 24 стр.
Soil quality - Sampling - Part 5: Guidance on the procedure for the investigation of urban and industrial sites with regard to soil contamination (ISO 10381-5:2005)— 43 стр.
Geotechnical investigation and testing - Sampling methods and groundwater measurements - Part 1: Technical principles for execution (ISO 22475-1:2006); German version EN ISO 22475-1:2006— 127 стр.