ISO 15064:2017 PDF

Scope: 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. 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).

ISO 15064:2017 Referenced Document

ISO 4787:2010 Laboratory glassware - Volumetric instruments - Methods for testing of capacity and for use
ISO 6353-2:1983 Reagents for chemical analysis; Part 2 : Specifications; First series
ISO 648:2008 Laboratory glassware - Single-volume pipettes

2017 ISO 15064:2017 Plastics - Aromatic isocyanates for use in the production of polyurethanes - Determination of the isomer ratio in toluenediisocyanate (TDI)
2010 ISO 15064:2010 Plastics - Aromatic isocyanates for use in the production of polyurethanes - Determination of the isomer ratio in toluenediisocyanate
2004 ISO 15064:2004 Plastics - Aromatic isocyanates for use in the production of polyurethanes - Determination of the isomer ratio in toluenediisocyanate