2.5% Methane and 20.9% Oxygen in Nitrogen Calibration Mixture 110 litre in a canister (34 bar).

All non-refillable canisters are supplied in robust, lightweight aluminium alloy canisters. Once empty there is no need to return empty canisters, simply recycle via your normal waste stream. Canisters should be de-pressurised before recycling, the easiest way to do this is with our recycler tool which is also available to purchase on this site.
Non-refillable canisters like calibration gases manufactured by Air Products, are traceable to national standards and issued with a Certificate of Analysis in accordance with ISO 6141.