1. NF ISO 14869-1, Soil Quality - Dissolution for the Determination of Total Element Content - Part 1: Dissolution with Hydrofluoric and Perchloric Acids;AFNOR,2001
2. NF ISO/IEC 17025, General Requirements for the Competence of Testing and Calibration Laboratories;AFNOR,2005
3. NF ISO 10390, Soil Quality – Determination of pH;AFNOR,2005
4. NF ISO 11464, Soil Quality - Pretreatment of Samples for Physico-chemical Analyses;AFNOR,2006
5. XP ISO/TS 21268-2, Soil Quality - Leaching Procedures for Subsequent Chemical and Ecotoxicological Testing of Soil and Soil Materials - Part 2: Batch Test Using a Liquid to Solid Ratio of 10L/kg Dry Matter;AFNOR,2007