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Gas and Vapor Sampling

Color Diffusion and Dosimeter Tubes for Passive Sampling

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     Dräger Tubes

Dräger Color Diffusion Tubes

Dräger Color Diffusion Tubes allow the user to reliably measure Time-Weighted Average (TWA) concentrations for up to eight hours. 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). No pumps, charts, or analyses are needed.



     Gastec Tubes

Color Dosimeter Tubes

Gastec Color Dosimeter Tubes

Gastec Color Dosimeter Tubes provide reliable, on-the-spot Time-Weighted Average (TWA) monitoring of worker exposure to gases and vapors. Simple-to-use and easy-to-read, snap off the pre-scored end of the tube and insert it into a tube holder. No pump, chart, or analysis is needed. Read the printed calibrated scale on the tube for exposure measurement in parts-per-million-hours (ppm-hours)

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