1. AFNOR (1990a) Aggregates. Los Angeles test. NF P18–573
2. AFNOR (1990b) Aggregates. Micro-Deval attrition test. NF P18–572
3. AFNOR (1992a) Earthworks. Classification of materials for use in the construction of embankments and capping layers of road infrastructures. NF P 11–300
4. AFNOR (1992b) Soils: investigation and tests. Degradability coefficient of rocky material. NF P94–067
5. AFNOR (1992c) Soils: investigation and tests. Fragmentability coefficient of rocky material. NF P94–066