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The technical grade of xylenes (mixed) (hereafter termed xylenes) contains the three isomeric forms and ethylbenzene (percentage composition shown above). The annual production for 1985 was approximately 7.4 x 108 gallons. Xylenes is used as a solvent and a cleaning agent and as a degreaser and is a
Solvents were tested for their influence on motivational state, as well as for their sedative effects, after intraperitoneal administration. The following tests were used: open field (exploratory activity, locomotion), activity wheel (running activity), tube test and tilted plane (muscle weakness,
Group motility was recorded continuously in male rats during the inhalation of benzene, toluene, ethylbenzene, o-, m- and p-xylene vapours. The solvents were applied in at least six concentrations, up to those inducing anaesthesia. Minimum narcotic concentrations (ppm) were: 5940 (benzene), 3590