An exception to this rule is granted for resist processing with standard solvents and developers. You nay use vinyl or latex gloves only for standard photoresist processing. Hot-plates used for heating chemicals must be attended. You must be in the cleanroom while you are heating chemicals. No mercury thermometer is allowed inside the cleanroom, due to hazards after breakage.
Users have to clean their storage area weekly, in order to maintain cleanliness.
If you use recyclable bottles, make sure you scratch away old label. Any processing that needs to be carried out over night or more than 8 hours, must have a note indicating chemical name, finishing time, user's name, and contact telephone number in case of emergency, posted next to it. Thoroughly rinse empty chemical bottles. Fill and dump at least 3 times. The above rules are essential for maintaining normal clean room operation.