1. AFNOR NF P 94-052 (1995) Standard test for soils investigation and testing-Atterberg limit determination-part 1: liquid limit-cone penetrometer method
2. AFNOR NF P 94-054 (1991) Standard test for soils investigation and testing-determination of particle density-Pycnometer method
3. AFNOR NF P 94-056 (1996) Standard test for soils investigation and testing-Granulometric analysis-dry sieving method after washing
4. AFNOR NF P 94-057 (1992) Standard test for soils investigation and testing-granulometric analysis-hydrometer method
5. AFNOR NF P 94-068 (1998) Standard test for soils investigation and testing-measuring of the methylene blue adsorption capacity of a rocky soil-determination of the methylene blue of a soil by means of the stain test