2-29. GAS CYLINDERS.
Before proceeding, always keep in mind the WARNINGS listed in the front of this manual.
Store flammable gases away from other gases and secure cylinders to prevent falling.
Freon-12 will freeze tissue upon which it is directed. When directed onto a red-hot surface or
flame, it emits highly toxic fumes of phosgene and fluoride.
a. Types. Four types of gas cylinders are included in the base laboratory and are part of the major component
units: 220-240-cubic foot capacity oxygen gas cylinders (Units 47 and 48); 100-pound capacity liquefied petro propane
gas cylinders (Units No. 58 and 59); and a 5-pound capacity Refrigerant -12 gas cylinder (Unit No. 60). Each type is
equipped with cylinder valve, valve protection cap, and outlet connection cap. Pressure regulators are provided for use
with the oxygen and the propane gas cylinders. Do not attempt to attach flammable gas regulators to oxygen cylinders
(by forcing the connection), or to use "homemage" adaptors of any kind.
(1) Oxygen Gas Cylinders.
(a) Position cylinder in the desired location and make certain that it is firmly supported to prevent falling
(b) Remove valve protection cap from cylinder and remove outlet connection cap from valve outlet
Never attempt to refill a cylinder, return it to the supplier.