Disturbed samples :-
Those samples in which the natural structure of the soil get disturbed during sampling are known as disturbed samples.These are of 2 types
1 Representative samples:-
Those samples attains their soil structure but slightly change in other properties like as temperature, moisture content, void ratio etc. These samples are suitable for lab testing.
2 Non Representative samples:
Those samples completely lost their structural properties and highly changed in water contents with its other properties are known as Non Representative samples. These samples are not suitable for lab testing.
Those samples in which natural structure of the soil and water contents are retained during sampling are called undisturbed samples.