Dräger Sampling Tubes:Silica Gel Tubes Type NIOSH
Dräger Safety offer a massive range of short-term gas detection tubes for the measurement of various gases. This particular set of tubes is for Silica Gel Tubes Type NIOSH
The tubes come in a pack of 1 tubes and have a shelf life of 2 years.
|Adsorbate:||organic compounds which adsorb on silicagel|
|Adsorption layer:||140 mg|
|Backup layer:||70 mg|
|Tube length:||70 mm|
|Outside diameter:||6 mm|
|Inside diameter:||4 mm|
Advice for sample-taking:
The air to be analysed must be drawn through the tube at a constant flow rate between 0.01 and 0.2 L/min. During sampling the silicagel tube should be in a vertical position. This guarantees a constant flow through the silicagel. NIOSH points out in its regulations that the absorption capacity of silicagel is affected by high air humidity, which may result in premature breakthrough of the substance to be measured into the control layer. A special tube adapter (order no. 67 28639) is necessary in order to use Drager pumps for sampling. After sampling the tube must be sealed with the polyethylene supplied caps.
Note concerning the analysis:
The enriched volatile organic compounds are analysed in accordance with the procedures recommended by BGIA, DFG, NIOSH, OSHA and HSE. For evaluation of the sampling tubes and systems please contact Dräger..
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