Le présent document prescrit deux catégories de méthodes pour le dosage de l'acétate de vinyle (VAC) dans les copolymères éthylène/acétate de vinyle (EVAC) en vue de leur désignation conformément à l'ISO 4613-1 : l'une dite "méthodes de référence", l'autre dite "méthodes de contrôle".
<p>This document specifies two categories of method for the determination of the vinyl acetate (VAC) content of ethylene/vinyl acetate (EVAC) copolymer, for use in the designation of such copolymers according to ISO 21301-1. One category is referred to as “reference methods”, the other as “test methods”.</p> <p>The “reference methods” are used to calibrate the method used for the determination of the vinyl acetate content of ethylene/vinyl acetate copolymers.</p> <p>The “test methods” are other methods which can be used for the determination if they are calibrated using one of the reference methods described in Clause 4, provided they show a certain permissible repeatability.</p>
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