puits (1) végétation (1) test (1) norme (1) minéral (1) mine (1) chaux (1) lignite (1) laboratoire (1) abords (agglomération) (1) étalonnage (1) calcul (1) Testing (1) Calibration (1) Area (1) Instruments (1) Reference sources (1) Exinite (1) Area (1) Work (1) Water (1) Volcanic ash, tuff, etc (1) Values (1) Units of measurement (1) Uncertainty (1) Testing (1) Stairs (1) Specific gravity (1) Reflectance (1) Quartz (1)