EN 648 Determination of Fastness of Paper and Cardboard, Fluorescently Bleached Paper and Cardboard Intended to Contact with Foodstuffs

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of EN 648 testing. This standard describes procedures for testing the fastness of fluorescently bleached paper and paperboard intended for food contact. Some procedures are given based on the foreseeable use of the material.

The visual absence of fluorescence of glass fiber paper under UV light is evaluated. For samples with significantly different sides, a migration from one glass fiber to the other may occur, resulting in a misinterpretation of the fastness of one side.

It is recommended to check these samples using the large sampling procedure to avoid cross-contamination of the glass fiber during the migration procedure. This procedure can also be used if a lower detection limit is required.

A sample is contacted with glass fiber papers saturated with a test liquid and placed under load for a certain period of time. Staining of glass fiber paper is evaluated by comparing it to a set of fluorescently bleached comparison papers. The test fluids used are distilled or deionized water, dilute acetic acid, saliva simulator and olive oil, depending on the type of food contact expected.

EUROLAB assists manufacturers with EN 648 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.