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ISO 15064:2017

Plastics — Aromatic isocyanates for use in the production of polyurethanes — Determination of the isomer ratio in toluenediisocyanate (TDI)

Jun 30, 2017

General information

90.93     Sep 9, 2022

ISO

ISO/TC 61/SC 12

International Standard

83.080.10  

English  

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Scope

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).

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 15064:2010

NOW

PUBLISHED
ISO 15064:2017
90.93 Standard confirmed
Sep 9, 2022