Do not leave chemical bottles on the floor.

It is very tempting to leave a chemical in a bay so that it is available for use at a later time. However, chemical bottles are not very strong. Glass bottles can easily shatter and plastic bottles can rupture a seam. Once on the floor, the chemical can present a severe safety hazard to everyone in the cleanroom. Some chemicals, such as solvents or hydrochloric acid, will vaporize or react with moisture in the air causing toxic gas clouds in the immediate area. Many chemicals do not have immediate health effects but can cause problems later after excessive exposure. Anyone unsure about the health effects or proper handling of a chemical should consult the MSDS for that chemical. Most are online in the electronic MSDS index and others are available through the manufacturer.