ISO/TR 9372:1993 PDF
Plastics — Basic materials for polyurethanes — Determination of the amounts of 2,4- and 2,6-isomers in toluenediisocyanate by infrared spectroscopy
Название (английский):
ISO/TR 9372:1993
Plastics — Basic materials for polyurethanes — Determination of the amounts of 2,4- and 2,6-isomers in toluenediisocyanate by infrared spectroscopy
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 4
- Дата публикации:
- 25 марта 1993 г.
- Издание:
- ISO TR 9372 edition 1 version 1
- ICS:
- 83.080.10
Описание (английский):
The principle of the method is preparing a cyclohexane solution of the sample to be analyzed, measuring the absorbance for the 810 cm^-1 and 782 cm^-1 bands which are characteristic of the 1,2,4- and 1,2,6-positions on the aromatic ring, and calculating the absorbance ratio. Applies to mixtures containing 5 % to 95 % of the 2,4-isomer.
Технические детали
- Технический комитет
- ISO/TC 61/SC 12 - Thermosetting materials
- SKU
- ISO/TR 9372:1993