Product Code Product Description PRS-ZE1500 Pinhole Test Apparatus PRS-ZE1502 PVC Tubing Ã? 10x8 mm 10 m Coil STANDARDS : BS 1377:5; ASTM D4647 Water flowing through fine-grained soils with high sodium content makes them highly erodible. The PRS-ZE1500 Pinhole Test Apparatus is used for evaluating the erodibility of clay soils by flowing water through a small hole that is drilled through the compacted specimen. The apparatus consists of a cylindrical metal container fitted one end with a water inlet and the other end with an outlet connection, a standpipe tube with scale and a stand to support the apparatus. Dimensions 150x200x1200 mm Weight (approx.) 3.5 kg