623-2050 - Fieldmaster Turbidity Tube 120 cm Length - Fieldmaster Turbidity Tube - Each

Pay with

About 623-2050 - Fieldmaster Turbidity Tube 120 Cm Length

This device is commonly used to determine the clarity of running water. It functions very similarly to the Secchi disk, which relies on the reflected light of the sun from a disk lowered through the water column. A Secchi disk has two white quadrants and two black quadrants. (The Secchi disk is lowered until it disappears and, conversely, reappears when raised. This depth produces a reading which is called the index of transparency.) The turbidity tube measures turbidity in streams where a Secchi disk is not practical. The clear polycarbonate tube is in two lengths (60 or 120 cm long) for different turbidity requirements. It features a centimeter scale on one side of the tube and a small Secchi disk on the bottom. The Secchi disk is screwed to a rubber stopper that removes for cleaning. Meets GLOBE Requirements -Clear polycarbonate construction -Length: 120 cm Measure turbidity in streams where a Secchi disk cannot be used. This clear polycarbonate tube has a 4.5 cm diameter Secchi disk design on the bottom. Simply drain the tube with a hose and finger clamp.