I read this in the UIUC safety manual:
Perchloric acid: If perchloric acid is heated above ambient temperature it may
evaporate and condense on ductwork in the form of explosive perchlorates. Hence,
when heating perchloric acid above ambient temperature, a perchloric acid fume
hood with a water wash down system or a local scrubbing or trapping system must
be used.
Another useful chart of how resistant various types of gloves are towards different chemicals is listed here (glove_info). Not comprehensive, but interesting.