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BSI BS ISO 15064:2017

Plastics. Aromatic isocyanates for use in the production of polyurethanes. Determination of the isomer ratio in toluenediisocyanate
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BSI BS ISO 15064:2017

Plastics. Aromatic isocyanates for use in the production of polyurethanes. Determination of the isomer ratio in toluenediisocyanate

PUBLISH DATE 2017
PAGES 18
BSI BS ISO 15064:2017

This document 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. MethodĀ A is applicable to toluenediisocyanate (TDI) samples containing between 5Ā % and 95Ā % of the 2,6-isomer. MethodĀ B is applicable to TDI samples containing 0Ā % to 5Ā % of the 2,6-isomer. Both methods are based on the quantitative measurement of absorption bands arising from out-of-plane Cāˆ’H deformation vibrations of the aromatic ring at 810Ā cmāˆ’1 and 782Ā cmāˆ’1 (12,3 μm and 13,8 μm).

SDO BSI: British Standards Institution
Document Number ISO 15064
Publication Date July 28, 2017
Language en - English
Page Count
Revision Level
Supercedes
Committee PRI/42
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