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ISO 25761:2008

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

General information
Withdrawn from 14.02.2014
Directives or regulations
None
Standard history
Status
Date
Type
Name
14.02.2014
Main
The method specified in ISO 25761:2008 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 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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Standard monitoring