I would fill the 5% sulfuric acid into a glass bottle and then close it with a plastic lid. I would then leave the bottle under a hood in a chemistry laboratory.
Glass is a chemically inert material. However, some plastics as I know can react with sulfuric acid. For instance: hydrolytic reaction may take place on the surface of a PET bottle. Water reacts with the ester groups of PET. Sulfuric acid would act as a catalyst.
Some chemical inert polymer bottle/container works well. It doesn't break as easy as glass bottles. The sulphuric acid (96 %), which I use, comes in HDPE bottles as the ones in the link of Michael Schmitt .