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Normas DIN – AENOR
DIN EN ISO 14896:2008-08

DIN EN ISO 14896:2008-08

Plastics - Polyurethane raw materials - Determination of isocyanate content (ISO/FDIS 14896:2008); German version FprEN ISO 14896:2008 / Note: Date of issue 2008-10-20

Plastiques - Matières premières des polyuréthannes - Détermination de la teneur en isocyanate (ISO/FDIS 14896:2008); Version allemande FprEN ISO 14896:2008 / Attention: Date de parution 2008-10-20

Kunststoffe - Polyurethanrohstoffe - Bestimmung des Isocyanatanteils (ISO/FDIS 14896:2008); Deutsche Fassung FprEN ISO 14896:2008 / Achtung: Erscheinungsdatum 2008-10-20

Fecha Anulación:
2019-07 /Withdrawn
Equivalencias internacionales:

ISO/FDIS 14896 (2008-09)

prEN ISO 14896 (2008-09)

Relación con otras normas DIN:

Reemplazada por: DIN EN ISO 14896:2009-07

This standard 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.
Base materials, Basic materials, Chemical analysis and testing, Concentration, Definitions, Determination of content, Isocyanates, Mathematical calculations, Measurement, Methods of analysis, Plastics, Polyurethane, Raw materials, Reagents, Test report
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