This International Standard describes laboratory methods for determining the water retention characteris ics of soil. This International Standard applies only to measurements carried out to establis drying and desorption curves.
NF X31-551:2014 history
2014NF X31-551:2014 Soil quality - Determination of the water-retention characteristic - Laboratory methods
1998NF X31-551:1998 Soil quality - Determination of the water-retention characteristic - Laboratory methods.