ISO 15064:2004
Plastics -- Aromatic isocyanates for use in the production of polyurethanes -- Determination of the isomer ratio in toluenediisocyanate
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| Language | Format | Add to basket |
|---|---|---|
| English | PDF (193 kB) | CHF 66,00 |
| English | Paper | CHF 66,00 |
General information
Number of Pages: 10
| Edition: 1 (Monolingual) | ICS: 83.080.10 |
| Status: Published | Stage: 90.93 (2007-07-10) |
| TC/SC: TC 61/SC 12 |
Abstract
ISO 15064:2004 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 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 2,6-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.
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