Well, that's an easy one ... you start with a list (and build it up from there). smile

What have you got so far? think

As you may know, there have been a few threads on here that have touched on this in the past. But none bore any real fruit, as far as I am aware.

ECRI gets mentioned from time to time; and of course there are a few companies (consultancies) here in the UK - MJM, Hiltron et al - that would be no doubt happy to sell you a set of specs.

Some of the WHO stuff (guidelines) is pretty good. Also, be aware of what the MHRA has to offer.

Other than that, I suspect that Neil might be looking for another project. whistle

PM sent.

If you don't inspect ... don't expect.