Reference number
ISO 15064:2004
© ISO 2025
ISO 15064:2004
Plastics — Aromatic isocyanates for use in the production of polyurethanes — Determination of the isomer ratio in toluenediisocyanate
Edition 1
2004-08
Retirada
Retirada (Edición 1, 2004)

Resumen

ISO 15064:2004 specifies methods for the measurement of toluene-2,6-diisocyanate in mixtures of the 2,4- and 2,6-isomers. Two methods based on infrared spectroscopy are required to give accurate results over a broad range of isomer concentrations. Method A is applicable to TDI samples containing 5 % to 95 % of the 2,6-isomer. Method B is applicable to TDI samples containing 0 % to 5 % of the 2,6-isomer. Both methods are based on the quantitative measurement of absorption bands arising from out-of-plane C-H deformation vibrations of the aromatic ring at 810 cm-1 and 782 cm-1.

Informaciones generales

  • Estado
     : Retirada
    Fecha de publicación
     : 2004-08
    Etapa
    : Retirada de la Norma Internacional [95.99]
  • Edición
     : 1
    Número de páginas
     : 10
  • Comité Técnico :
    ISO/TC 61/SC 12
    ICS :
    83.080.10 
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