Gas cylinders are always clamped tightly in place after being positioned for use. Flammable solvents amounting to more than 1 pint are kept in safety cans. Ridges are along the front edges of shelves to prevent glass reagent bottles from rolling or jarring off. Chemicals which might react together to produce dangerous fumes, fires, or explosions, are stored away from each other. Volatile liquids are kept away from heat sources, sunlight, and electrical switches.
Special cabinets are available for storing flammable and combustible chemicals.
Flammable or combustible liquids are drawn from or transferred into vessels, containers, or portable tanks by a device fitting into the top, with an approved self closing valve. Dispensing of acids, ammonia, etc. Signs of OSHA size and color are used to direct traffic flow, warn of hazards, and give information. A file of publications on laboratory safety is readily available. Personnel are not permitted to work alone in the laboratory.