BS ISO 15064:2017
$102.76
Plastics. Aromatic isocyanates for use in the production of polyurethanes. Determination of the isomer ratio in toluenediisocyanate (TDI)
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 20 |
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).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 Sampling 5 Principle 5.1 Method A 5.2 Method B 6 Reagents |
| 9 | 7 Apparatus 8 Test conditions 9 Method A — Samples containing between 5 % and 95 % of 2,6-TDI 9.1 Calibration |
| 11 | 9.2 Procedure 9.3 Expression of results 9.4 Precision and bias 9.4.1 Precision 9.4.2 Bias |
| 12 | 9.5 Test report 10 Method B — Samples containing 0 % to 5 % of 2,6-TDI 10.1 Calibration 10.2 Procedure 10.3 Expression of results |
| 13 | 10.4 Precision and bias 10.4.1 Precision 10.4.2 Bias 10.5 Test report |
| 14 | Annex A (normative) Calibration curves |
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ISO 15064:2017
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