Résumé
ISO 15064:2017 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 used to give accurate results over a broad range of isomer concentrations. Method A is applicable to toluenediisocyanate (TDI) samples containing between 5 % and 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 (12,3 μm and 13,8 μm).
Informations générales
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État actuel: PubliéeDate de publication: 2017-06Stade: Norme internationale confirmée [90.93]
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Edition: 3
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Comité technique :ISO/TC 61/SC 12ICS :83.080.10
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Cycle de vie
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Précédemment
AnnuléeISO 15064:2010
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Actuellement
Cette norme contribue aux Objectifs de développement durable suivants
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