Reading the guide is mandatory before commencing work in the laboratory.
Find the guide here (pdf).
Everyday tasks
Find information about waste, ATEX, Laboratory practise and much more here: Working environment pages.
Contact
Overall questions: Most groups will have a laboratory technician that you can ask, but if that person is not available or short of answers, you can find the right person to contact by using this link to the "Who to ask" list -> "Practical things".
FKF has got its own workshop, where you can find help for the department apparatus's and for manufacturing special equipment for the laboratories. The workshop also changes pressure bottles, oil and much more.