Versaperm Permeability Laboratory testing service
 
InstrumentstestingSensorsGasses and vapoursConsultancy

 

Versaperm manufactures gas permeability testing equipment, offers a comprehensive permeability testing service and a materials consultancy. These are used to measure gas permeability and leakage, important in medical and pharmaceutical packaging, foils and films, coatings, food and confectionery packaging and contents, and many other applications.

Versaperm designs and manufactures instruments to meet each customer’s needs. Instruments are typically be based on a modular MkVI design.

Permeability metre


Our laboratory testing service has over 30 years experience to enable us to choose the best technique to measure your sample's permeability both quickly and accurately.

Our diverse and growing range of sensors are based on fundamentally different and divergent physical principals. The choice of the right sensor for an application is critical in the successful deployment of the equipment. We are not tied to a sensor manufacturer.

At Versaperm we can measure the permeability for almost any gas / vapour including water vapour, Oxygen, CO2 Hydrogen, Helium, Nitrogen and Hydrocarbons.

Permeability is often the most critical factor in a material or component's performance. It determines how drugs to loose potency, food goes off, how paper both prints and jams in equipment, how seals work and it can even cause electronics to fail.

Our Consultancy division combines our theoretical and practical Permeability skills in instrument design and manufacture. Permeability Consultancy

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Permeability testing of Flat Samples

To measure the vapour permeability of flat samples they are usually clamped between two halves of a diffusion chamber. Versaperm instruments are unique in their ability to accommodate materials up to approximately 50 mm in thickness in standard mode. Although this is significantly more than most sample holder designs, in fact it is only a limitation in standard mode, and for some applications, the chamber has been modified to accommodate much thicker samples.


 

 

Vapour permeability testing of flat samples and films

There are two common chamber sizes, 1/200 m² and 1/1000 m², which can accommodate samples of about 100mmx100mm and 30mmx30mm. Resolution is higher with larger surface areas. Samples should ideally be larger than the minimum to ease handling.

To test different samples against different sample types against different vapours and gasses we have developed a wide range of sensor options to measure the vapour permeability accurately and quickly.

Vapour permeability sensors

Carbon Dioxide Hydrocarbons Photoionization
Catalytic Combustion Hydrogen Pressure Measurements
Coulometric Infrared Semiconductor
Electrochemical Oxygen Thermal Conductivity
Flame Ionization Mass Spectrometer Water Vapour
Gas Chromatography Nitrogen ZrO2
Helium Paramagnetic  

We are currently unable to use radioactive or highly toxic gases. However, please call to discuss your application.

Some of the many sample types we can test in our permeability testing laboratory

Adhesives Fuel Cells Paper
Aerospace Gravimetric Packaging
Automotive ISO15105 Pharmaceutical
Blister Packs Laboratory Plastics and Rubber
Building Materials Leaks and Seals Quality Control
Business waste MAP (Modified Atmosphere Packaging) Sachets an Powders
Edible films Marine Solvents
Electronics Mastics and Adhesives Textiles
Films Medical Vapour Permeability
Freezer Burn O Rings  

Vapour permeability measurement
Foils and sachets


Versaperm Limited
10 Rawcliffe House, Howarth Road, Maidenhead, Berkshire, SL6 1AP, UK, Tel: +44 1628 777668
e.mail:
webcontact@versaperm.com
© Versaperm Limited 2010