Codes & Standards - Purchase
Plastics -- Polyols for use in the production of polyurethanes -- Determination of basicity (total amine value), expressed as percent nitrogen
SKU: iso_063437_155324 Published by ISO Publication Year 2014 2 Edition 7 pages
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.