Flammable or combustible materials may only be heated using appropriate laboratory appliances. Open flame devices are not to be utilized in areas where flammable or combustible liquids or gases are in use. The contents of all gas cylinders must be legibly identified. Fuel gases and oxygen cylinders must be stored separated. Cylinders, when not in use, must always be shut off at the main valve stem and not through the use of regulators.
Appropriate regulators are to be used to control gas flow from cylinders.
Valve protection caps should be in place when cylinders are not in use and also during transport. Empty and full gas cylinders should be stored in separate storage areas. Cryogenic fluids should be used and transported in appropriate containers. Personnel should not accompany an asphyxiant in an elevator. Tygon tubing must not be used for conveying cryogens.