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Gas Sample Bag Selection Guide

Gas Sample Bags are one of the types of sampling media used in air sampling, onto/into which the contaminant is collected. Other sampling media includes the sorbent in sorbent tubes and filters. Use this convenient guide to help you select a gas sample bag to meet your application.

Gas Sample Bag Material Thickness mil (mm) Fittings Benefits Disadvantages
  • 2
    (0.05)
  • Dual SS
  • Single PP
  • Breath-gas Analysis
  • Classic Dupont film
  • Good stability for VOCs, CO, CO2, methane, SF6 and some sulphur compounds including H2S
  
  • 5
    (0.13)
  • Single SS
  • Single PP
  • Effectively retains H2S for 48 hours
  • Good light and moisture barrier properties
  • Good stabilty for CO, CO2, methane, hydrogen, H2S, carbonyl sulphide, methyl and ethyl mercaptan and SF6
  
  • 5
    (0.13)
  • Single SS
  • Single PP
  • Breath-gas Analysis
  • All the benefits of Standard FlexFoil
  • Low VOC background
  • Good stabilty for VOCs
  • Suitable for collecting low ppm to high ppb level VOCs
  
  • 3
    (0.07)
  • Dual SS
  • Single PP
  • Low VOC background
  • Good stability for many VOCs, CO, CO2, methane and SF6
  • Acceptable stability for some sulphur compounds
  • Most economical option
  • Not recommended for H2S or carbonyl sulphide
  • Requires flat storage and transport for sample integrity

Table Notes:

SS - Stainless Steel
PP - Polypropylene

Read more …Gas Sample Bag Selection Guide

Bioaerosol Sampler Selection Guide

Sampler Principle of Operation Flow Rate (L/min) Contaminants Sampler Advantages
Button Sampler

Button Sampler

 Filtration using porous membrane 4 (optimum) Fungi (viable and non-viable), endotoxins, bacteria
  • Superior collection uniformity
  • Low sensitivity to ambient conditions
  • Sample suitable for viable and non-viable analysis
  • Personal bioaerosol sampling
BioStage Single-stage Impactor

BioStage Sampler

 Impaction onto culture media 28.3 Fungi (viable) and bacteria
  • SureLock positive seal
  • Organisms remain intact and viable
  • Cost effective and reusable
  • Time-proven collection method
  • Meets NIOSH Methods 0800 and 001
VersaTrap Spore Trap Cassette

VersaTrap Spore Cassette

 Impaction onto sticky glass slide 15 (optimum) Fungi (viable and non-viable), pollen, fibres
  • Reduces particle bounce
  • Prevents sample loss and blurring
  • Allows direct quantitative analysis
  • Enumeration of fungal spores with low culturability
BioSampler

BioSampler

 Collection into swirling liquid 12.5 (sonic flow) Fungi (viable and non-viable), endotoxins and bacteria
  • Maintains constant collection efficiency over 8 hours
  • Reduces particle bounce and reaerosolisation, preserving viability
Microvacuum Sampling Cassette

Carpet Sampling

 Filtration using porous membrane 10 (optimum) Fungi and fibres
  • Easy to use
  • Suitable for high flows to enhance detection
  • Microvacuum nozzle for efficient sampling in carpeting
Sterile Surface Swab Kit

Sterile Surface Swab Kit

 Wipe sample N/A Fungi (viable and non-viable), bacteria
  • Easy to use
  • Suitable for growth cultures
  • Non-destructive
  • Collects surface contaminants
Stick-to-it Lift Tape

Sterile Surface Swab Kit

 Lift tape surface sample N/A Fungi, pollen, fibres
  • Ensures consistent sample area
  • Serialised for sample identification
  • Includes transport case for mailing to laboratory

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Particulate Sampler Selection Guide

Use this convenient guide to help you select sampling devices (impactors, samplers, cyclones, etc) to meet your applications.

Particle Size-selective Sampling:

  • Inhalable (100 μm 50% cut-point) - hazardous when deposited anywhere in the respiratory tract.
  • Thoracic (10 μm 50% cut-point) - hazardous when deposited anywhere in the lung airways and the gas exchange regions.
  • Respirable (3.5/4 μm 50% cut-point) - hazardous when deposited in the gas exchange regions of the lungs.
  • PM2.5 and PM10 sampling according to EPA regulation determines compliance with ambient air quality standards and reveals information on particle sources and their effect on the environment and public health.
Diagram showing the different areas of the lungs, referred to in air sampling as inhalable, thoracic and respirable
50%
Cut-Point		 Particle
Classification		 Flow Rate
L/min		 Recommended
Sampler		 Feature/Benefit
<1.0 µm Sub-micron 1.7 or 2 DPM CycloneDiesel Particulate Matter (DPM) Cyclone Ideal for Diesel Particulate Matter (DPM) and nano-particles
0.25 µm to >2.5 µm Ultrafine, Fine and >PM2.5 9 Sioutas Cascade
ImpactorSioutas Personal Cascade Impactor		 Samples coarse, fine and ultrafine particles simulatanesously
2.5 µm PM2.5 2 PEMPersonal Environmental Monitor (PEM) Referenced in EPA IP-10A
3 PMIPersonal Modular Impactor (PMI) High collection efficiency
4 PEMPersonal Environmental Monitor (PEM) Referenced in EPA IP-10A
10 IMPACT Impact Sampler High flow for increased sensitivity
10 PEMPersonal Environmental Monitor (PEM) Referenced in EPA IP-10A
3.5 µm Respirable 3 GS-1 CycloneGS-1 Respirable Dust Cyclone Conductive plastic
4.0 µm Respirable 2 IOM*IOM Sampler *Respirable sampler when used with respirable foam insert.
2 PPIParallel Particle Impactor (PPI) Closest match to ISO/CEN curve
2.5 Aluminium
CycloneAluminium Cyclone		 Specified in NIOSH 7500 and 0600
2.75 GS-3 Cyclone GS-3 Respirable Dust Cyclone Conductive plastic
3 Plastic CyclonePlastic Cyclone for Respirable Dust Conductive plastic
4 and 8 PPIParallel Particle Impactor (PPI), referenced in MDHS 14/4 Referenced in MDHS 14/4
10 µm Thoracic or PM10 2 PPIParallel Particle Impactor (PPI) Closest match to ISO/CEN curve. Available in disposable and reuseable versions.
2 PEMPersonal Environmental Monitor (PEM) Referenced in EPA IP-10A
3 PMIPersonal Modular Impactor (PMI) High collection efficiency
4 PEMPersonal Environmental Monitor (PEM) Referenced in EPA IP-10A
10 PEMPersonal Environmental Monitor (PEM) Referenced in EPA IP-10A
10 IMPACTImpact Sampler High flow for increased sensitivity
100 µm Inhalable 0.75 Mini SamplerMini Sampler for sampling under welding helmets and masks For sampling within the breathing zone, particularly behind protective face shields, such as masks and helmets
1 IFV ProIFV Pro Sampler Simultaneous sampling of mixed phase (aerosol and vapour)
2 IOMIOM Sampler Preferred method for MDHS 14/4
Meets ACGIH sampling criteria for inhalable dust
4 ButtonButton Sampler Low level Particulate Matter (PM) sampling
>2.5 µm to <10 µm PM Coarse 3 PMIPersonal Modular Impactor (PMI) High collection efficiency
10 IMPACTImpact Sampler High flow for increased sensitivity

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Hazard Awareness Posters

Useful A3 posters that can be downloaded, printed and displayed in the workplace.

A3 poster showing hazards of wood dust

If you would like someone to contact you to discuss your application or requirements please click here.

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Step by Step Guide

A useful introductory guide to the basics of air sampling and guidelines for air sampling, which provides information on dust and vapour/gas sampling, and the equipment and the methods used.

Our Step by Step Guide provides useful information to all users

If you are based in the UK and would like printed copies of the Step by Step Guide, or if you would like someone to contact you to discuss your application or requirements please click here.

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