Oxygen transmission rate (OTR) of plastic films, laminates, coated papers, Alufoils, etc.

Coulombmetric (oxygen specific) carrier gas method Method (Ametek/ Mocon). Usually deviating from the standard as a double determination

Test Method Group: permeation

Norms:

ASTM F 1927 (2014) Standard Test Method for Determination of Oxygen Gas Trans-mission Rate, Permeability and Permeance at Controlled Relative Humidity Through Barrier Materials Using a Coulometric Detector
ASTM D 3985 (2024) Standard Test Method for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor
DIN 53380-3 (1998-07) Testing of plastics – Determination of gas transmission rate – Part 3: Oxygenspecific carrier gas method for testing of plastic films and plastics mouldings
ISO 15105-2 (Appendix A) (2025-11) Plastics — Film and sheeting — Determination of gas-transmission rate — Part 2: Equal-pressure method

Required Sample Amount: optimum: 2 DIN A 4 sheets without folds, creases or other damages

Standard Tests

OTR film , wet test 23°C/ 75 % rel. humidity

Specific Norm: ISO 15105-2 (Anhang A)

Testing program for packaging materials used for packing products that neither contain much humidity like e.g. cheese and meat products. To simulate the wet conditions, the measurement with an increased relative humidity of 75%, which in certain barrier materials (for example, EVOH and PA) leads to higher values compared to measurements under standard climate.

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OTR film , dry conditions 23°C/ 0 % rel. humidity

Specific Norm: ASTM D 3985

Testing program for applications in dry environments and dry filling goods, so rarely relevant in practice. Found now and then in product data sheets for raw materials and EVOH films.

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OTR film standard 23°C/ 50 % rel. humidity

Specific Norm: ISO 15105-2 (Anhang A)

Most common test program for all applications at "normal" indoor climate. Basis of most literature and data sheet values.

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