95.99 Aug 10, 2018
ISO/TC 190/SC 7
ISO 19258:2005 provides guidance on the principles and main methods for the determination of pedo-geochemical background values and background values for inorganic and organic substances in soils. ISO 19258:2005 gives guidance on strategies for sampling and data processing and identifies methods for sampling and analysis. ISO 19258:2005 does not give guidance on the determination of background values for groundwater and sediments.