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

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

02-14-2014

Publisher

International Organization for Standardization

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.

DevelopmentNote	Supersedes ISO/DIS 25761. (02/2014)
DocumentType	Standard
Pages	7
PublisherName	International Organization for Standardization
Status	Current
Supersedes	ISO 25761:2008

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Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals (Withdrawn 2009)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