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Nitrogen dioxide - detection tubes (dosi) 0.1-30ppm, package 10 pcs

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.

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Product description

Product description

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
Accessories

DOSITUBE HOLDERS PKG/3

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