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VerpakkingsCentrum


Gas permeability

VerpakkingsCentrum

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GAS PERMEABILITY

Using unique test equipment and extensive expertise, this important property is focused on within this research theme.  It is a measure that indicates how permeable a certain material is for a specific gas. Various test methods are used in the industry. The ‘VerpakkingsCentrum’ uses the 3 most common test principles, in particular 'Equal pressure', 'Differential pressure' and 'Fluorescent decay'. Various gases can be analysed. In addition, residual gas analysis, burst value and leak detection can also be analysed

EQUAL PRESSURE METHOD

Applications: 

•Quantification of gas permeability properties.
•Testing flat foil materials as well as packaging concepts (up to 3 liter).
•Influence of temperature and relative humidity (also for packages).
•Determination of shelf life/durability.
•Validation of new developed packaging materials.  

Determination of oxygen permeability:

•MOCON, Oxtran model 2/21 (ML, SH, SS and ST) and model 702
              Sensitivity from 0,005 to 155.000 cc/m2/day.
              Temperature range within the cell from 5 to 50°C.
              Relative humidity range within the cell: 0% or from 35 to 90%.
•Standard: ASTM F-1927, ASTM D-3985, DIN-53380, ASTM F-1307, ISO CD 15105-2 etc.

Determination of carbon dioxide permeability:

•MOCON, Permatran-C model 4/41 (MC and SC)
              Sensitivity from 1 to 10.000 cc/m2/day.
              Temperature range within the cell from 5 to 50°C with a relative humidity of 0%.
•Standards: ASTM F-2476 etc.

Determination of water vapour permeability:

•MOCON, Permatran-W 3/33 (MG, SW and MW), model K101 and 700 & cup method                               Sensitivity from 0,005 to 500.000 g/m2/day. 
              Temperature range within the cell from 5 to 50°C. 
              Relative humidity range within the cell: 100% or from 35% to 90%. 
•Standards: ASTM F-1249, TAPPI T557, ASTM E96 etc.

    

 

 

 

 

 

 

 

 

 

 

 

DIFFERENTIAL PRESSURE METHOD

Applications:
•Analyses of more special dry gases, such as Helium, Argon,… (excluding explosive, corrosive and dangerous gases).
•Investigation of discoloration due to oxygen permeability at high pressure and increased temperature.
•Performance research vacuum packages. 

Determination of gas permeability:      

•Brügger GDP-C                                                            
               For films not for packages.
               Sensitivity from 0,5 to 30.000 cc/m2/day/bar.
               Temperature range from -20 to 80°C.
               Relative humidity of different salt solutions.
•Standard: ASTM D-1434, ISO 15105-1 etc.

 

 

 

FLUORESCENT DECAY 

•Applications:
               Oxygen permeability of combination packaging and product.
               Determination evolution of oxygen percentage in headspace and/or dissolved.
               Real-life monitoring in the cold chain or extreme conditions.

Determination of oxygen permeability and percentage: 

•MOCON Optech-P O2 Platinum
               For films as well as for packages.
               Sensitivity from 0,001% (permeation mode)/0,015% (headspace mode) to 25%O2.                 

Temperature range from 10 to 40°C.
               Relative humidity range from 0% to 100%.
•Standard: ASTM F-2714, ASTM F-3136 etc.

ADDITIONAL METHODS 

Analyzer of headspace gasses (O2, CO2 and N2):

•Checkmaster 2100 Lippke
               Sensitivity for oxygen 0,5% from measured value.
               Sensitivity for carbon dioxide 1,0% from measured value.
               Nitrogen is a calculated value.
•Applications:
               Evaluation of gas composition headspace in production.
               Checking Modified Atmosphere Packages.
•Standard:

 Determination burst strength and leak detection:

•Lippke 2000 SL
               Measuring range from 0 to 3000 mbar.
               Accuracy 1%. Sensitivity 1 mbar.
•Application:
               Control of the seal with direct connection to sterile closure.
               Burst test/pressure lost test.
•Standards: ASTM F2096-11, ASTM F2054, ASTM F1140 etc. 

 

Contact 

Dimitri Adons
T: +32 (0) 11 29 21 63
M: +32 (0) 477 99 15 61
@: dimitri.adons@uhasselt.be