SILICA TUBE + TEA (nitrogen dioxide sampling)
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The NIOSH, OSHA ed EPA regulations require the use of absorbent tubes for the “active” sampling of many toxic chemicals that are present in the atmosphere or into conveyed streams as gases and vapors. From the amount of sampled substances, and analytically determined, knowing the total volume of sampled air, it is possible to find the concentration present in the environment.
SILICA TUBE + TEA are ideal for sampling nitrogen dioxide.
The tubes, manufactured by AQUARIA, have been developed in compliance with the Ley No.81/2008: the two ends are in fact equipped with two tight caps. Before use it is no longer necessary to break the tube, but just remove those caps.
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| - Range available:
* Standard:
quantity of silica gel: 75 - 150 mg
internal diameter of the tube: 5,6 mm
external diameter of the tube: 8,2 mm * Large:
quantity of silica gel: 200 - 400 mg
internal diameter of the tube: 6,4 mm
external diameter of the tube: 8,7 mm * Jumbo:
quantity of silica gel: 200 - 800 mg
internal diameter of the tube: 7,5 mm
external diameter of the tube: 10,5 mm
- Porous septum: in polyethylene (to avoid adsorbing phenomena during the sampling), with high porosity to minimize the pressure drop
- Tubes ends closed by caps sealed with two stopper
- Available in packs of 5 pieces. Inside the packaging the tubes are placed in under vacuum bags.
- The lot number and expiration date are reported on esch box. The user can also record data from sampling (identification number of the tube, place, date, start time and end of sampling).
- Each package is supplied with a quality control certificate, where it is declared the quantity of NO2 (in µg/g) found in 3 random sampling tubes.
- Shelf life: 1 year
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