[taildraggernut]

Originally Posted by Crumpp

You don't seem to grasp the difference between research and adopted standard.

This is an adopted Standard:

http://ecfr.gpoaccess.gov/cgi/t/text....3.11.2.158.27

But this is a 'post war' adopted standard, have you got a link to the evidence of adoption of standards during the war? and clear evidence the British did not have any?

p.s. not sure why you PM'd me the answer, but it is probably the most relevant post made, would you mind if I put your PM up on here?