It may be worth making clear that BS 7000 and BS 70000 are two different Standards.
Perhaps it's a pity that BSI and ISO et al seemingly haven't come up with a clearer (not to mention logical) naming (numbering) regime of their own!
Information on line seems to indicate that BS 70000 has been adopted by a few Medical Physics Departments (radiotherapy and so forth), rather than "clinical engineering" per se. I note also that the accreditation process (following any of these Standards) may be expected to take two years to complete.
For what it's worth (probably not a lot) my own take on all this stuff is that these processes are largely a waste of time and money; effort that would be much more usefully spent on inspecting the inventory of equipment (preferably on a rolling basis) to accurately assert the condition of the dependency - and then putting right any (probably many) of the deficiencies found.
What's the point of assessing the competency of a system, or indeed a team, that may well have completely changed in x years time?
Nice work for the accreditation authorities, though. Jobs for life!
It's all very well having a nice, tidy, Quality System (with all the boxes being ticked) ... but surely what we should be about is providing a Quality Service?