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polymer and plastic materials oxygen rate transmission rate measurement March 29,2019.

Measurement of barrier or permeation properties of polymers and plastics is essential across a wide range of industries including packaging, medical, cosmetics or food where manufacturers and end-users require information regarding a material’s barrier properties.

Polymers and plastics are permeable and their barrier properties may impact their suitability for a specific application. In packaging, for example, ineffective barrier properties may render the enclosed product vulnerable to surrounding environmental factors, such as water, humidity, and oxygen, including its future storage.

The gas Transmission Rate (GTR) is an important determinant of the packaging protection afforded by barrier materials particularly for film, sheeting, laminates, coextrusions, or plastic-coated papers.

What’s the definition of GTR?

Gas transmission rate (GTR) is the measurement of the amount of gas (O2, N2, CO2 etc)that passes through a substance over a given period. It is mostly carried out on non-porous materials, where the mode of transport is diffusion, but there are a growing number of applications where the transmission rate also depends on flow through apertures of some description.

What’s the application of GTR on industries?

On industries, many kinds of materials need to test gas transmission rate for protect the foods, medicine etc. Therefore, Some testing instruments are widely used in food industry, pharmaceutical industry, cosmetics flexible packaging materials industry (plastic film, barrier materials, sheets, metal aluminum, PVC, PVC sheets), college, university and quality institution for gas(O2, CO2, N2, non-inflammable gas and non-corrosive gases) permeation test and quality control.

So how to test GTR of packaging materials for your product?

GBPI Gas Permeability Analyzer N530 can help you to solve it!! Gas permeability analyzer is to test the gas (O2, N2, CO2 etc) transmission rate (GTR) of films and sheets materials. If you want to know more, GBPI, a leading manufacturer of packaging test instruments, can help you.

gas permeability tester

Applied to:

1) Plastic film, composite film, aluminum foil, aluminized film,etc;

2) Sheet, panel, rubber, ceramics,etc;

3) Packaging containers, such as:glass, bottle, cans, boxes, etc;

4) Expanding application: solar panel, LCD film, contact lenses, medical patch, etc.

Widely used in quality inspection organizations, drug control institutions, research institutes, packaging, thin film, food companies, pharmaceutical enterprises, personal care industry, electronics industry and so on.


GB/T 1038-2000,ISO 2556-1974,ISO 15105-1-2007,ASTM D1434, YBB 00082003-2015,JIS K7126-1-2006

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