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EN ISO 14896:2009

Current
Current

The latest, up-to-date edition.

Plastics - Polyurethane raw materials - Determination of isocyanate content (ISO 14896:2009)
Published date

15-02-2009

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
   4.1 Method A
   4.2 Method B
5 Application
6 Interferences
7 Sampling
8 Test conditions
9 Reagents
10 Apparatus
11 Method A - Toluene/dibutylamine with aqueous HCI
   11.1 Procedure
   11.2 Expression of results
   11.3 Precision and bias
   11.4 Test report
12 Method B - Toluene/TCB/DBA with methanolic HCI
   12.1 Procedure
   12.2 Expression of results
   12.3 Precision and bias
   12.4 Test report

ISO 14896:2009 specifies two methods for the measurement of the isocyanate content of aromatic isocyanates used as polyurethane raw materials. Method A is primarily applicable to refined toluene diisocyanate (TDI), methylene-bis-(4-phenylisocyanate) (MDI) and their prepolymers. Method B is applicable to refined, crude or modified isocyanates derived from toluene diisocyanate, methylene-bis-(4-phenylisocyanate) and polymethylene polyphenylisocyanate. It can also be used for isomer mixtures of toluene diisocyanate, methylene-bis-(4-phenylisocyanate) and polymethylene polyphenylisocyanate. Other aromatic isocyanates may be analysed by this method if precautions are taken to verify suitability. It is not applicable to blocked isocyanates.

Committee
CEN/TC 249
DevelopmentNote
Supersedes EN ISO 9369. (09/2001)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current
Supersedes

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I.S. EN 15274:2015 GENERAL PURPOSE ADHESIVES FOR STRUCTURAL ASSEMBLY - REQUIREMENTS AND TEST METHODS
14/30300568 DC : 0 BS EN 15274 - GENERAL PURPOSE ADHESIVES FOR STRUCTURAL ASSEMBLY - REQUIREMENTS AND TEST METHODS
BS EN 60455-2:2015 Resin based reactive compounds used for electrical insulation Methods of test
05/30135769 DC : DRAFT JUL 2005 EN 15274 - GENERAL PURPOSE ADHESIVES FOR STRUCTURAL ASSEMBLY - REQUIREMENTS AND TEST METHODS
I.S. EN 60455-2:2015 RESIN BASED REACTIVE COMPOUNDS USED FOR ELECTRICAL INSULATION - PART 2: METHODS OF TEST
DIN EN 15274 E : 2015 GENERAL PURPOSE ADHESIVES FOR STRUCTURAL ASSEMBLY - REQUIREMENTS AND TEST METHODS
PREN 15274 : DRAFT 2014 GENERAL PURPOSE ADHESIVES FOR STRUCTURAL ASSEMBLY - REQUIREMENTS AND TEST METHODS
UNE-EN 15274:2015 General purpose adhesives for structural assembly - Requirements and test methods
EN 15274:2015 General purpose adhesives for structural assembly - Requirements and test methods
BS EN 15274:2015 General purpose adhesives for structural assembly. Requirements and test methods
EN 60455-2:2015 Resin based reactive compounds used for electrical insulation - Part 2: Methods of test

ISO 4787:2010 Laboratory glassware Volumetric instruments Methods for testing of capacity and for use
ISO 385:2005 Laboratory glassware Burettes
ISO 6353-1:1982 Reagents for chemical analysis — Part 1: General test methods
ISO 648:2008 Laboratory glassware — Single-volume pipettes
ISO 4788:2005 Laboratory glassware Graduated measuring cylinders
ISO 14898:1999 Plastics Aromatic isocyanates for use in the production of polyurethane Determination of acidity
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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