Nitrogen transmission rate (N2 TR) of plastic films, laminates, coated papers, alufoils etc.

Testing performed with the manometric method acc. DIN 53380 T 2 resp. ISO 15105-1 (Brugger-method), also comparable to ASTM D 1434-procedure M. Usually deviating from the standard as a double determination.

In short — AI-generated

The nitrogen transmission rate (N2 TR) measures how much nitrogen gas passes through a packaging material over a specific period. The test uses the manometric method, where the material is placed between two chambers; one side is filled with nitrogen, and the pressure change is measured on the other side as the gas permeates the film.

The resulting value indicates the barrier property of the material against nitrogen, which is crucial for assessing the shelf life of products packaged under modified atmospheres. Packaging developers use this data to select materials that prevent gas exchange, ensuring the internal atmosphere remains stable and the product quality is preserved.

Text is AI-generated; based on test method data curated and verified by Innoform.

Test Method Group: permeation

Norms:

DIN 53380-2 (2006-11) Testing of plastics – Determination of gas transmission rate – Part 2: Manometric method for testing of plastic films
ISO 15105-1 (2007-10) Plastics — Film and sheeting — Determination of gas-transmission rate — Part 1: Differential-pressure methods

Required Sample Amount: 2 x DIN A 4

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