DNPH Tube

Removable CAPS

POROUS SEPTUM

in pure polyethylene

Porous septum EXTRACTOR

Use

Opening tubes

Opening tube comparison

NIOSH, OSHA and EPA rules involve use of adsorbent tubes for “active” sampling  of many toxic chemicals present in the atmosphere or in the duct flows as gases and vapors. From the quantity of captured substance, and determined analytically, it is possible, knowing the total volume of aspirated air, to determinate the concentration present in the environment.

Adsorbenti “Tubes”, produced by AQUARIA, have been developed  in compliance with D. Lgs. n. 81/08: the two ends are closed with airtight caps and therefore it is no longer necessary to break the vial before use but  just remove the caps.
The caps are also useful to prevent accidental breakage of vials: if dropped their diameter, slightly larger than the diameter of the vial itself, is a good protection.
With the aid of practical extractor (provided), you can easily rotate the porous plugs (and extract them if needed) thus removing the substrate without breaking the vial. This will prevent accidental injuries and the shedding of  glass.
The opening system also ensures a homogeneous and linear air inlet flow as the entry point  prevents the development of possible turbulence

Fields of application:

• indoor air sampling
• outdoor air sampling
• emissions sampling  

FEATURES

• Available sizes:
  • Standard:
    content of the adsorbent: 75 – 150 mg
    Ø internal of the tube: 5,6 mm
    Ø external of the tube: 8,2 mm
  • Large:
    content of the adsorbent: 200 – 400 mg
    Ø internal of the tube: 6,4 mm
    Ø external of the tube: 8,7 mm
  • Jumbo:
    content of the adsorbent: 200 – 800 mg
    Ø internal of the tube: 7,5 mm
    Ø external of the tube: 10,5 mm
• Septum porous partition: in pure polyethylene (to prevent adsorption during sampling), with high porosity to minimize load losses
• The tube ends are closed by caps sealed with double flap
• Packaging: 5, 10, 20 and 40 pieces
  Inside the box there are adsorption tube packs of 5 pieces, each under vacuum
• Inside the box there are labels on which you can note sampling data (tube ID nr. , date, sampling start and end time )

AVAILABLE TYPES

• Carbon Tube for VOC / BTEX sampling
  Each pack is supplied with Quality Certificate and its chromatogram 
  Shelf life: 18 months
  Available packaging: 10 and 40 pcs

• Carbon Tube attivate for H₂S sampling
  Each pack is supplied with Quality Certificate and its chromatogram
  Shelf life: 4 months
  Available packaging: 5 pcs

• Carbon Tube attivate con TBC (ter-butilcatecolo) for methyl methacrylate sampling
  Each pack is supplied with Quality Certificate and its chromatogram
  Shelf life: 6 months
  Available packaging: 20 pcs

• Silica Tube for inorganic acids, amines and amides sampling
  Each pack is supplied with Quality Certificate and its chromatogram
  Shelf life: 12 months
  Available packaging: 5 pcs.

• Silica Tube + H₂SO₄ for ammonia sampling
  Each pack is supplied with Quality Certificate 
  Shelf life: months
  Available packaging: 5 pcs.

• Silica Tube + TEA for nitrogen dioxide (NO₂) sampling
  Each pack is supplied with Quality Certificate
  Shelf life: 12 months
  Available packaging: 5 pcs
  Disponibili nella tipologia Large e Jumbo

• Silica Tube + TEA  e Oxidant for nitrogen oxides (NOx) sampling
  Each pack is supplied with Quality Certificate
  Shelf life: 12 months
  Available packaging:
  n° 10 tubes of silica gel activated with TEA, Standard type, with content of silica 225 mg (single layer gel)
  n° 5 tubesof oxidizing Cr₂O₃, Large type, with content of oxidizer 400 mg (single layer)

• DNPH Tube for aldehydes sampling
  (NIOSH 2016; NIOSH 2018; EPA/625/R-96/010b con TO-11A method)
  Each pack is supplied with Quality Certificate and its chromatogram
  Shelf life: 6 months
  Available packaging: 5 pcs

• Tenax Tube for odorous substances sampling and medium high boiling compounds
  Shelf life: 12 months
  Available packaging: 5 pcs

• XAD-2 Tube for very stable organic substances sampling and with high molecular weight (eg. pesticides, herbicides, PCBs, PAHs, dioxins, etc.).
  Shelf life: 8 months
  Available packaging: 5 pcs

• XAD-7 Tube for glycols, cresol, phenol sampling
  Shelf life: 8 months
  Available packaging: 5 pcs

• Opcalite Tube for mercury sampling
  Shelf life: 8 months
  Contenuto in Opcalite 200 mg
  Available packaging: 5 pcs

The following PRECARTRIDGES are also available:

• Precartridge of sodium sulfate anhydrous crystals 10-60 mesh, for moisture retention
  Na2SO4 content: 1 g 
  Available packaging: 5 pcs

• Precartridge of  iodide potassium for the reduction of ozone interference on aldehydes sampling, especially formaldehyde 
  Iodide potassium content:  300 mg
  Available packaging: 5 pcs

Click here to download the brochure