ISO 12914:2012 specifies a method for microwave-assisted extraction of elements from samples using aqua regia as the extraction solution for the determination of elements. This method is applicable to all types of soil and soil material.
Document identifier
ISO 12914:2012
Title
Soil quality - Microwave-assisted extraction of the aqua regia soluble fraction for the determination of elements
ISO Category
TC 190/SC 3: Chemical methods and soil characteristics