NEN-ISO 25761
Plastics - Polyols for use in the production of polyurethanes - Determination of basicity (total amine value), expressed as percent nitrogen
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 March 2014 |
| Status: | active |
| Page Count: | 16 |
| ICS Code (Thermosetting materials): | 83.080.10 |
scope:
The method specified in NEN-ISO 25761 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. It is also permissible to express the results in equivalents of base per gram of sample.
Document History
NEN-ISO 25761
March 1, 2014
Plastics - Polyols for use in the production of polyurethanes - Determination of basicity (total amine value), expressed as percent nitrogen
The method specified in NEN-ISO 25761 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...
May 1, 2008
Plastics - Polyols for use in the production of polyurethanes - Determination of basicity (total amine value), expressed as percent nitrogen
The method specified in this International Standard measures the basic constituents in polyols that are soluble in glacial acetic acid and reactive with perchloric acid. Samples containing 0,3 % to...