DIN 19682-7-1997 农业水利工程中土壤调查方法.野外试验.第7部分:用双层渗滤环测定渗滤比
Methods of soil investigations for agricultural water engineering - Field tests - Part 7: Determination of infiltration rate by double ring infiltrometer
The document specifies methods for determination of infiltration rate by double ring infiltrometer within the group of methods for soil investigations for agricultural water engineering.