BS ISO 10390:2005

This standard BS ISO 10390:2005 Soil quality. Determination of pH is classified in these ICS categories:

• 13.080.10 Chemical characteristics of soils

This International Standard specifies an instrumental method for the routine determination of pH using a glass electrode in a 1:5 (volume fraction) suspension of soil in water (pH in H₂O), in 1 mol/l potassium chloride solution (pH in KCl) or in 0,01 mol/l calcium chloride solution (pH in CaCl₂).

This International Standard is applicable to all types of air-dried soil samples, for example pretreated in accordance with ISO 11464.