• LAB EQUIPMENT & BAGS

    AIR SAMPLING AND COLLECTION SOLUTIONS

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PTFE SAMPLING BAG

Scentroid Is the only manufacturer offering PTFE air sampling bags. These sampling bags offer a much higher resistance to contamination and Scentroid PTFE Sampling Bag have a longer holding time than Tedlar bags. They are also accepted bag material for all standards. PTFE Sampling bags are extremely resistant to contamination and therefore can be easily cleaned and reused. PTFE sampling bags are already approved by the Ministry of Environment in Ontario and almost every other jurisdiction around the world.

1.PTFE Recommended For Samples:

  • Where samples are processed with long delay. (12+ hours)
  • With high VOC and H2S.
  • With any petrochemical products such as benzene.
  • With low odour threshold (will not contaminate sample).
  • With high humidity.

2.PTFE Not Recommended For Samples:

  • Being processed with delay exceeding 30 hours.
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Tedlar Sampling Bag

Tedlar bags provides a storage median that can be reused.

Tedlar has been the standard in air sampling for more than 20 years. Tedlar bags provide a reusable storage medium with good retention for most substances. Scentroid Tedlar bags are made of  2 mill thick film and purged at 100 °C using Scentroid’s patented heat/vacuum SP20 Purger for ultimate purity. Each bag is pressure tested and leak tested to ensure perfect quality.

  • Tedlar Recommended For Samples:

    • Processed with moderate delay. (6 to 12 hours)
    • With moderate to high VOC and H2S.

    Tedlar Not Recommended For Samples:

    • Being processed twelve or more hours after sampling.
    • With low contamination (due to high background chemical levels)
    • With Benzene and other petrochemicals.
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Nalophan Bags

Nalophane is an inexpensive material used for making disposable sample bags.

Nalophan is an inexpensive material used for making disposable sample bags. Nalophan  can be purchased pre-made or as a large roll to reduce cost. Nalophan provides a cost effective solution but has the shortest holding time for most compounds such as H2S, Ammonia and VOCs.

Nalophan Recommended For Samples:

  • Processed without long delays (less than six hours for most samples)
  • With moderate VOC and H2S

Nalophan Not Recommended For Samples:

  • Being processed six or more hours after sampling.
  • With high humidity.
  • With high H2S.
  • With Benzene or other petrochemical
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Stainless Steel Sampling Bag

Each stainless steel bag is made of electro-polished marine grade (316L series) stainless steel film. Stainless steel sampling bags are ideal for sampling corrosive materials such as high H2S or benzene. The stainless steel is rolled into a thin film that provides it with flexibility while maintaining the 100% sample preservation. Scentroid stainless Steel bags are used commonly instead of Sumo canisters.

  • Where GCMS analysis were purity is a must.
  • With ultra-high H2S content where sample preservation is critical.
  • With high concentration of petrochemical compounds.
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SK5, N-BUTANOL SENSITIVITY KIT

The Scentroid SK5 Sensitivity Kit is designed to provide accurate N-butanol mixtures of 5 to 50 ppm from a liquid N-butanol source. The N-butanol mixture can then be used to screen panelists using the Scentroid SM100 or any other Scentroid olfactometer in accordance to the EN13725 standard. The mixture is accurate and repeatable thanks to the fixed volume evaporation chamber, micro-liter syringe, and pre-purged Tedlar bag.

  • Certify laboratory panelists
  • Find local panelists for a mobile laboratory
  • Check sensitivity of field inspectors
  • Check sensitivity of affected residents
  • Demonstrate odour concentration
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SP20 – HEATED AIR PURGER

The Scentroid SP20 Heated Air Purger is a revolutionary device designed to provide an effective and reliable cleaning solutions for olfactometers, sample bags, PTFE lines, and other equipment which may be contaminated with odours.

  • The SP20 provides hot air at up to 200 degrees Celsius (400 degrees Fahrenheit) to effectively clean stainless steel lines of any of our olfactometers. It can be connected directly to the sample line or to the compressed air line.
  • The hot air from the unit can also be used to regenerate carbon filters and silica gels in the odour/humidity filter built into the SM100, SC300, or the SS600.
  • The SP20 provides a unique function of cycling between injecting hot air and vacuuming to speed up purging of Tedlar and other reusable bags.
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SP50 – Oxidisation Purger

The Scentroid SP50 Oxidisation Purger is a revolutionary device designed to provide an effective and reliable cleaning solutions for olfactometers, sample bags, PTFE lines, and other equipments which may be contaminated with odours.

  • The SP50 provides a mixture of clean air with oxidisation gases such as ozone and hydroxyl to effectively decontaminate sampling Tedlar or Teflon Bags, sampling probes, or sampling lines.
  • The mixture is injected, with the desired concentration to allow high levels of decontamination either, remaining contaminants, bacteria or fungus.
  • The SP50 has been built with safety in mind, the purger has a built in-carbon filter that scrubbers and cleans the contaminated air coming from the equipment that is being cleaned such bags or probes, before it is released into the laboratory.
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Synthetic Odour Production

By Odour Characteristic: Burnt Rubber, Diesel, Pine, Rose, Smoke, Tobacco, Lemon, Manure, Garbage, Sweat, blood, rotten egg, ….

Pure Compound: m-Styrene, Skatole, Ammonia, Hydrogen Sulfide, Eucalyptol, Heptanal, Hexane, ….

We can simulate any odour!

Have a look at the odour wheel to the left and simply send us your request.

  • 5 or 8 L evaporation chamber
  • PTFE sample bag
  • PTFE tubing
  • Micro-liter or milliliter syringe (depending on sample)
  • Liquid sample
  • Hard carrying case
  • Detailed instructions and tables for achieving the desired concentration

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