Abstract

ISO 14896:2006 specifies two methods for the measurement of the isocyanate content of aromatic isoocyanates 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.


General information 

  • Status
     :  Withdrawn
    Publication date
     : 2006-06
  • Edition
     : 2
    Number of pages
     : 9
  • Technical Committee
     : ISO/TC 61/SC 12 Thermosetting materials
  • ICS
     :
    83.080.10 Thermosetting materials

Life cycle


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