Norm

ISO/TR 9372:1993 en

Plastics - Basic materials for polyurethanes - Determination of the amounts of 2,4- and 2,6-isomers in toluenediisocyanateby infrared spectroscopy

31,57

Over deze norm

Status Definitief
Aantal pagina's 4
Commissie Kunststoffen
Gepubliceerd op 25-03-1993
Taal Engels
The principle of the method is preparing a cyclohexane solution of the sample to be analyzed, measuring the absorbance for the 810 cm and 782 cm 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.

Details

ICS-code 83.080.10
Nederlandse titel Plastics - Basic materials for polyurethanes - Determination of the amounts of 2,4- and 2,6-isomers in toluenediisocyanateby infrared spectroscopy
Engelse titel Plastics - Basic materials for polyurethanes - Determination of the amounts of 2,4- and 2,6-isomers in toluenediisocyanateby infrared spectroscopy

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