EN ISO 14896:2009
Current
The latest, up-to-date edition.
Plastics - Polyurethane raw materials - Determination of isocyanate content (ISO 14896:2009)
15-02-2009
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 |
| Standards | Relationship |
| DIN EN ISO 14896:2009-07 | Identical |
| ISO 14896:2009 | Identical |
| NF EN ISO 14896 : 2009 | Identical |
| NBN EN ISO 14896 : 2009 | Identical |
| NEN EN ISO 14896 : 2009 | Identical |
| NS EN ISO 14896 : 2009 | Identical |
| I.S. EN ISO 14896:2009 | Identical |
| PN EN ISO 14896 : 2010 | Identical |
| BS EN 14896:2006 | Identical |
| BS EN ISO 14896:2009 | Identical |
| UNE-EN ISO 14896:2009 | Identical |
| DIN EN 15274:2015-06 | GENERAL PURPOSE ADHESIVES FOR STRUCTURAL ASSEMBLY - REQUIREMENTS AND TEST METHODS |
| 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 |
| PREN 15274 : DRAFT 2014 | 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 |
| UNE-EN 15274:2015 | General purpose adhesives for structural assembly - Requirements and test methods |
| 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 |