ISO 15064:2010
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Plastics Aromatic isocyanates for use in the production of polyurethanes Determination of the isomer ratio in toluenediisocyanate
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25-02-2019
English
24-11-2010
ISO 15064:2010 specifies methods for the measurement of toluene-2,6diisocyanate in mixtures of the 2,4- and 2,6isomers. 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 2,6isomer. Method B is applicable to TDI samples containing 0 % to 5 % of the 2,6isomer. Both methods are based on the quantitative measurement of absorption bands arising from out-of-plane CH deformation vibrations of the aromatic ring at 810 cm1 and 782 cm1.
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