Which statement is TRUE concerning the short exposure tolerance for Benzene?
A
3000 ppm is endurable for 30 - 60 minutes (single exposure)
B
500 - 1000 ppm for 30 - 60 minutes will produce definite irritation to the trachea
C
5.5 ppm for 1 minute is practically intolerable
D
No chronic effects noticed after 20,000 ppm exposure for 5 - 10 minutes
E
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