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About This Item
Full Description
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.
Document History
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ISO 14896:2009
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Plastics - Polyurethane raw materials - Determination of isocyanate content- Most Recent
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ISO 14896:2006
Plastics - Polyurethane raw materials - Determination of isocyanate content- Historical Version
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ISO 14896:2000
Plastics -- Polyurethane raw materials -- Determination of isocyanate content- Historical Version