An electrical item falling into a wash tank or other liquid container could cause
(3) Chemical safety: Observing posted warning signs and complying with directed
procedures helps establish safe working habits. Make sure that your laboratory has adequate ventilation.
Never sniff a container or opened bottle to determine its contents. When necessary, proper protective
equipment and clothing should be worn. Working with caustic chemicals or acids requires that you use
a rubber apron, rubber gloves, and goggles.
CAUTION: Always add acid to water. Adding water to concentrated acid can cause it to
boil and splatter.
Make sure that cleaning material and chemicals are not allowed to mix with photographic
chemistry. After cleaning, remove all cleaning material residue from tanks, trays, sinks, and shelves.