Sand Bath Method
This is a field method used in the determination of the rough value of water content in the field, where the facility of an oven is not available.
The soil sample collected in the container is placed on a sand bath.
A kerosene stove is used to heat the sand bath.
The side gets dry in ½ - 1 hour of time.
The water content is determined using the above equation:(3.1).
No control on temperature. Therefore, higher temperatures may break the crystalline structure of soils.
Not suitable for organic soils or soils containing gypsum in higher percentages.