Drager Direct Indicating Diffusion Tubes
£88.20 inc. VAT
- Simple-to-use and economical; Break tube end off and sample; No pump needed
- Accurate and reliable TWA sampling; Calibrated scale printed directly on tube allows on-the-spot reading of exposure; No charts or lengthy calculations needed
- Convenient and easy-to-use tube holder
- Allows safe tube end removal and secure sampling in the breathing zone
Using the principles of gas diffusion and colorimetric reaction, Dräger Color Diffusion Tubes allow the user to reliably measure Time-Weighted Average (TWA) concentrations for up to eight hours. An easy-to-use tube holder allows safe tube end removal and secure sampling. Color Diffusion Tubes can be evaluated at any point during a workshift. The calibrated scale printed directly on each tube indicates parts-per-million-hours (ppm-hours). For a TWA reading, simply determine the point where the stain length ends and divide this reading by the total length of sampling time. No pumps, charts, or analyses are needed.