Hi - is it OK to store (outside / ventilated / weather protected etc.) oxygen and acetylene bottles together. Can`t find any guidance relating to the storage other than keep quantities low etc. Thanks.

You can, but they need to be well separated from each other. They should be on a firm, well drained surface, usually concrete, protected from the weather, but having low and high level ventilation as a minimum. They should not be stored next to each other. The only exception is where they are on a trolley to form an Oxy-Acetylene set. The best place to go for guidance is the British Compressed Gases Association, BCGA.

This is probably the document that will tell you what you need to know: BCGA Code of Practice 44 The Storage of Gas Cylinders

Can be downloaded FOC at http://www.bcga.co.uk/pa...=2&showSubCategory=1

BCGA guidance note GN2:

http://tinyurl.com/hy7e723