Reference number
ISO 14896:2009
ISO 14896:2009
© ISO 2024
International Standard
ISO 14896:2009
Plastics — Polyurethane raw materials — Determination of isocyanate content
Edition 3
2009-02
2009-02
ISO 14896:2009
50601
Publicado
(Edición 3, 2009)
Esta publicación se revisó y confirmó por última vez en 2019.
Por lo tanto, esta versión es la actual.
Resumen
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.
Informaciones generales
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Estado: PublicadoFecha de publicación: 2009-02Etapa: Norma Internacional en proceso de revisión sistemática [90.20]
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Edición: 3Número de páginas: 9
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Comité Técnico :ISO/TC 61/SC 12ICS :83.080.10
- RSS actualizaciones
Ciclo de vida
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Anteriormente
RetiradaISO 14896:2006
RetiradaISO 14896:2006/Amd 1:2007
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Ahora