I've found a couple of very helpful guideline sheets for B&W dark rooms..... Check them for all sorts of basic info on film, processing, and printing, as well as general safety issues, (and some specific rules of local labs that you can most likely ignore)....(posted 9286 days ago)http://www.arts.usf.edu/~marcus/photo/labmanual.html
http://www.users.dircon.co.uk/~migol/photo/devframe.html