Gastec - Short-Term Measurement Detector Tubes
A detector tube system that performs measurements using the GV-100/GV-110 gas sampling pump. The handle on the gas sampling pump is pulled all the way back to create a vacuum inside the cylinder, drawing the gas sample through the detector tube.
This can be used by anyone, anywhere, and at anytime to quickly and easily make an accurate concentration reading.
Passive dositubes for time-weighted measurements
Passive dositubes are used to measure time-weighted average (TWA) gas concentrations over longer periods. Dositubes use the principle of the natural diffusion of gas.
A dositube is a glass tube of a specific inner diametre that is filled with a diffuser and chemical reagent in parallel that enable gas to disperse at a constant rate resulting in a longer discolouration and better demarcation. The passive dositube can then be positioned in the worker`s breathing zone where it can be attached with a holder and collar clip (separately available: Art.No.710) and the amount of individual exposure can be measured. Stationary use is also possible for TWA measurements of concentration distribution or change within a fixed environment over longer periods, such as the course of a whole day.
- Compact, lightweight, and versatile(can be used anywhere)
- Easy direct measuring and reading
- No sampling pump necessary