ISO 25761:2014
Current
The latest, up-to-date edition.
Plastics — Polyols for use in the production of polyurethanes — Determination of basicity (total amine value), expressed as percent nitrogen
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English
14-02-2014
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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.
| Committee |
ISO/TC 61/SC 12
|
| DevelopmentNote |
Supersedes ISO/DIS 25761. (02/2014)
|
| DocumentType |
Standard
|
| Pages |
7
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| BS ISO 25761:2014 | Identical |
| NEN ISO 25761 : 2014 | Identical |
| ISO 6353-1:1982 | Reagents for chemical analysis — Part 1: General test methods |
| ISO 1042:1998 | Laboratory glassware — One-mark volumetric flasks |
| ISO 4788:2005 | Laboratory glassware — Graduated measuring cylinders |
| ASTM E 180 : 2003 | Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals (Withdrawn 2009) |
| ASTM D 6979 : 2013-11 | TEST METHOD FOR POLYURETHANE RAW MATERIALS: DETERMINATION OF BASICITY IN POLYOLS, EXPRESSED AS PERCENT NITROGEN |
| ISO 6353-3:1987 | Reagents for chemical analysis — Part 3: Specifications — Second series |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
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