95.99 Withdrawal of Standard Sep 30, 2011
ISO
ISO/TC 61/SC 12 Thermosetting materials
Technical Report
83.080.10 Thermosetting materials
Withdrawn
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.
WITHDRAWN
ISO/TR 9372:1993
95.99
Withdrawal of Standard
Sep 30, 2011