SPT
Split Tube Sampler design for carry out the Standard Penetration
Test (SPT) to BS ***7: Part 9: ***0 and ASTM standards. The Top
Ball Valve Adaptor, pair of Split Spoons, and open SPT Shoe compose
a complete of Split Tube Sampler. A Basket Retainer made from steel
also is available as an option the sampler. The ball valve adaptor
prevents samples from being washed out of the sampler when it is
withdrawn from the borehole. A *0 degree nose cone or long solid
rod with *0 degree point is available for carrying out SPT (c)
tests in gravel and loose material. The screw connection on the top
adaptor depends on the type of drill rods being used to drive the
sampler. Most frequently used rods are **1/2" B.S. Whitworth, NWY
Rod, BW or AW.
The standard Split Tube Sampler is 2" (*0.8 mm) OD x **3/8" (*4.9
mm ) ID x *8" (**7 mm) / *4" (**0 mm) long. For heavy driving
conditions, the Heavy-duty "Tuflok" design is
available.
