Anti-dew (anti-fog) test

Examination of transparent films or packages for anti-dew properties, as cold fog (storage in refrigerator T = 6° C) and/or hot fog (filling with hot tap water T = 60° C and storage at T = 23° C). The bedewing of the sample is forced by falling below the dew point, visually assessed and photographically documented.

Test Method Group: Mechanical properties

Norms:

In-house method 034 (07-2016) Fogging test

Required Sample Amount: Sample over total width of material, unprinted area if possible, minimum length: 3 m

Standard Tests

antifogtest/ coldfog

Specific Norm: Hausmethode

The common test for anti-fog properties of films for use in the cold chain for products which are not filled hot or heat treated in the package (e.g., fresh cut lettuce, meat, cheese, ...).

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antifogtest/ Hotfog

Specific Norm: Hausmethode

The common test of the anti-fog properties of films for use for products which are hot filled or heat treated in the packaging (e.g., fruit preparations, fruit juices, chilled food ...) and stored after chilling.

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