Paper and board intended to come into contact with foodstuffs

DIN EN 648:2017 pdf download

DIN EN 648:2017 pdf download.Paper and board intended to come into contact with foodstuffs - Determination of the fastness of fluorescent whitened paper and board. 9 Verfahren 9.1 Im Fall der Prifbedingungen D werden die Glasplatten (5.4)， das Gewicht (5.6) und die Alkalisalzlosung (6.4) 1 h lang bei Priftemperatur in einem Trockenschrank (5.8) gelagert; der optische Aufheller (6.1) wird im...

08-11

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BS EN 646:2018 pdf free

BS EN 646:2018 pdf free.Paper and board intended to come into contact with foodstuffs - Determination of colour fastness of dyed paper and board. This document describes procedures for the testing of dyed paper and board intended to come into contact with foodstuffs.Some procedures depending on the foreseeable use of the material are given. Visual evaluation against a grey scale...

02-26

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