16.4.4 Return of Cylinders

Disposal of cylinders and lecture bottles is expensive, especially if the contents are unknown. 

• Make sure that all cylinders and lecture bottles are labeled and included in your chemical inventory. Before you place an order for a cylinder or lecture bottle, determine if the manufacturer will take back the cylinder or lecture bottle when it becomes empty.
• If at all possible, only order from manufacturers who will accept cylinders or lecture bottles for return.