VA Phone: Fax: E-mail: cga cganet. Page 1 1 Introduction 1. Accidents occurring during the transportation, handling, use and storage of these containers can almost invariably be traced to failure to follow ICC requirements or to abuse or mishan- dling of the containers. General precautions are also included for tank car handling and reference is made to cargo tank handling. It should not be assumed that every acceptable safety precaution is contained herein, or that abnormal or un- usual circumstances may not warrant or require further or additional procedure. However, by the issuance of this pamphlet the association and its members, jointly and severally, make no guarantee of results and assume no liability in connection with the information herein contained, or for the safety suggestions herein made.

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C ; or A gas or mixture of gases having, in a container, an absolute pressure exceeding psi at deg. C regardless of the pressure at 70 deg. C ; or A liquid having a vapor pressure exceeding 40 psi at deg.

Compressed gases can be toxic, flammable, oxidizing, corrosive, or inert. In the event of a leak, inert gases can quickly displace air in a large area creating an oxygen-deficient atmosphere, toxic gases can create poison atmospheres, and flammable or reactive gases can result in fire and exploding cylinders.

In addition, there are hazards from the pressure of the gas and the physical weight of the cylinder. A gas cylinder falling over can break containers and crush feet. The cylinder can itself become a missile if the cylinder valve is broken off. Compressed gases can cause fires, explosions, oxygen deficient atmospheres, toxic gas exposures as well as the innate physical hazard associated with cylinders under high pressure.

Special storage, use, handling and disposal procedures are necessary to ensure the safety of researchers using these chemicals and equipment. General cylinder safety Accept only properly identified cylinders and do not rely on color codes. Wear safety equipment appropriate for the hazard potential of the gas before beginning work.

If a cylinder or valve is noticeably corroded, the vendor should be contacted for instructions. A leaking cylinder should be removed and isolated in a well-ventilated safe area.

It may be necessary to call in trained emergency response personnel. Instead, contact the supplier. Storage, Use and Handling Properly secure cylinders in a well ventilated and protected area away from heat, flames, and the sun. Segregated cylinders by hazard classes while in storage. Discontinue use of the cylinder when it has at least 25 psi remaining; close valve to prevent air and moisture from entering. Return unused and empty cylinders to the vendor for reuse or refill.

Compressed gas cylinders must be in an upright position and supported at all times, whether full or empty. Acceptable methods of support include: wall-mounted or bench-mounted gas cylinder brackets; chains or belts anchored to walls or benches; and, free-standing dollies or carts designed for gas cylinders and equipped with safety chains or belts. Gas cylinders must have the valve protection cap in place except when in use. Use appropriate dollies or hand trucks to move cylinders weighing more than 50 pounds.

Pressure regulators and gauges must be compatible with the cylinder valves. Disposal There are two general types of compressed gas cylinders: returnable owned by the gas supplier, rental fee charged to the University and non-returnable. Most suppliers will accept the return of their cylinders even if they are not empty. However, suppliers will not accept non-returnable cylinders under any circumstances.

Disposal of non-returnable cylinders containing highly toxic or reactive gas can be very expensive. Therefore, purchase compressed gases in returnable cylinders if available. If non-returnable cylinders are the only alternative, be prepared to pay for the cost of disposal. Where those regulations are not applicable, visual and other inspections shall be conducted in accordance with Compressed Gas Association Pamphlets C and C, which is incorporated by reference as specified in Sec.

Specific Gases.


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Signature of inspector: Guidelines This checklist covers regulations issued by the U. It applies to the handling, storage, and use of compressed gases in cylinders or portable tanks. The regulations cited apply only to private employers and their employees, unless adopted by a state agency and applied to other groups such as public employees. The following questions relate to the more common precautions to be taken in school environments.


Compressed Gases


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