Colorimetric gas detector tubes
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Colorimetric reagent tubes
Colorimetric reagent tubes are point measurement equipment (instant measurement), they are composed of a specific reagent tube for the to be measured gas and a sampling pump (manual or automatic) forming an inseparable measurement set.
Diffusion tubes or dosimetric tubes
Dosimetric tubes - or dosi-tubes, dosimeter tubes - differ slightly from colorimetric reagent tubes. These are TWA (time weighted average exposure value) type measurement equipment. They offer an average concentrations measure of harmful substances over a fixed period, generally 8 hours, the equivalent of a working day.
Tubes with pyrolyzer for freons and anesthetic gases
It is now easy, practical and economical to accurately measure chlorofluorocarbons, halogenated hydrocarbons and anesthetic gases with the Pyrotec tube range from Gastec. This point measurement equipment (instant measurement) is composed of a reactive tube specific to the to be measured gas, a battery pyrolyzer system to "crack this substance and a manual sampling pump.
Control & analysis of breathing air quality
Controlling the breathing air quality such as compressed air cylinders of self-contained breathing apparatus or scuba diving tanks is paramount, it is a matter of common sense. Tube control systems like Dräger Aerotest or Gastec Airtec tubes are relevant solutions for checking and ensuring compliance with the EN12021 standard relating to compressed breathing air quality.