5.0 Purchasing and Receiving

Avoid purchasing larger sized cylinders than are necessary. Several large cylinders stored in a lab area can potentially increase the risk in the event of an accidental release. Also, storage of several cylinders in a single lab restricts ambient use of space for other important research applications.

Visually inspect every incoming cylinder to the lab and ensure that they are not damaged during transport. Do not accept delivery of defective cylinders. Check for any leaks, which may be indicated by odors, visible fumes, corrosion, or hissing sounds. Ensure the valve cover or shipping cap is properly in place.

Typically, the physical integrity of the cylinders is tested every 10 years by the manufacturer. There should be a LAST TEST DATE on the top of the cylinder as shown below. If outdated cylinders are identified at the time of receiving, immediately notify the cylinder supplier.

Markings on a Cylinder

Prior to use in the lab, researchers should check the identification labels on the cylinder for the name and description, and the compositions are the same as on the purchase order and appropriate for the intended use.