There should be general rules on the topic and related topics, posted in the lab, or required reading before you enter the facility, for liability reasons. I recognize from your other posts, that you're working out an experiment from scratch, but things like "what to wear", "where the eyewash station is", and "where does waste go" aren't the sorts of things you're supposed to formulate yourself, there rules are written down somewhere, and if there's an accident (perhaps entirely unrelated to your weak solution of NaOH,) you don't want to start any sort of answer with, "I heard on-line ...", you instead want to say, "I followed the written procedure ..."