Shelby Tubes

The Shelby tube is designed to take undisturbed samples in cohesive type soils. Shelby tubes are the preferred method of sampling cohesive soils when using HSA.

Piston Tubes

Like Shelby Sampler a Piston Sampler is used to sample cohesive soils.
The difference being is a Piston Sampler can be used in an open borehole with Slouph. The sampler is advanced to desired depth, then the tube is advanced with water pressure, into the undisturbed soil.

Shelby & Piston Sampling Shelby & Piston Sampling