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ISO 25761:2014

Plastics -- Polyols for use in the production of polyurethanes -- Determination of basicity (total amine value), expressed as percent nitrogen

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Kehtiv alates 14.02.2014
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Staatus
Kuupäev
Tüüp
Nimetus
14.02.2014
Põhitekst
Põhitekst
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.
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