If you are using a United Nations certified open or closed head steel drum, the closure system most likely relies on a gasket to complete the compliant closure. Gaskets are used in closure to secure the drum cover, or plug, to be fluids and solids tight. Since the adoption of Performance Oriented Packaging, new gasket styles, materials and profiles have entered the market to increase drum integrity and performance. Gaskets can be of different colors, shapes, and compounds, however, drum fillers must be aware that all gaskets need to be inspected prior to sealing or closing a drum. Whether it‘s the first time closed, or a repeated closure, check the gasket for any irregularities including, but not limited to: crumbling, cracking, slicing, tearing, is it properly seated into the cover groove or on top of the bead, is the bond to the metal intact, and does the gasket exhibit memory. In the event that a user should believe the gasket to be questionable, you can ask the original drum manufacturer for a replacement gasket. It is important that the replacement gasket be the same as the original gasket with which the drums were originally performance tested. Using a non-OEM gasket will invalidate the UN certification. For more information about how to properly close steel drums, check out the Skolnik Closure Videos.
DOT/UN Safety Skolnik Newsletter
Question on gasket shelf-life? Our oversight has advised us not to use a new drum that has an expired shelf-life for the gasket. Is this the correct interrupretation of “shelf-life” for the gasket(s)?
Hello Terri,
Thank you for your inquiry. Per CFR49, our UN test certifications offer validation for all components of the test for 1 year. These tests are repeated annually, sometimes altering components. If you, as a shipper, want to inquiry about “shelf-life” or an extended certification of a component, we would suggest submitting your question to a specialist at PHSMA (Pipeline and Hazardous Materials Safety Administration) of the DOT.
Thank you,
Howard Skolnik