Soil quality - Determination of exchangeable acidity using barium chloride solution as extractant (ISO 14254:2018); German version EN ISO 14254:2018— 12 стр.
Soil quality - Determination of effective cation exchange capacity and base saturation level using barium chloride solution (ISO 11260:1994+Cor. 1:1996); German version EN ISO 11260:2011— 16 стр.
Soil quality - Determination of trace elements in extracts of soil by inductively coupled plasma - atomic emission spectrometry (ICP-AES) (ISO 22036:2008)— 32 стр.
Soil quality - Determination of effective cation exchange capacity and base saturation level using barium chloride solution (ISO 11260:2018); German version EN ISO 11260:2018— 18 стр.