Plastics — Polyols for use in the production of polyurethanes — Determination of basicity (total amine value), expressed as percent nitrogen
NORM herausgegeben am 14.2.2014
Bezeichnung normen: ISO 25761:2014-ed.2.0
Ausgabedatum normen: 14.2.2014
Zahl der Seiten: 7
Gewicht ca.: 21 g (0.05 Pfund)
Land: Internationale technische Norm
Kategorie: Technische Normen ISO
Description / Abstract: The method specified in ISO 25761:2014 measures the basic constituents in polyols that are soluble in glacial acetic acid and reactive with perchloric acid. Samples containing 0,3 % to 10 % of nitrogen have been evaluated by this method. The method is applicable to amine-based polyols, polyether polyols and polyether polyol blends that are used in polyurethane reactions. The results are measures of batch-to-batch uniformity and may be used to estimate reactivity in polyurethane reactions.