EN ISO 14896:2009

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

Publication date:   Jul 10, 2009

General information

60.60 Standard published   Feb 15, 2009

CEN

CEN/TC 249 Plastics

European Norm

83.080.10   Thermosetting materials

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Scope

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.

Life cycle

PREVIOUSLY

Replaces
EN ISO 14896:2001

NOW

PUBLISHED
EN ISO 14896:2009
60.60 Standard published
Feb 15, 2009