"mike"
Phil Allison wrote:

Seems the IEC method compensates for all these factors and you wind up
with a figure that is about 10 to 15 % more than the imprecise method.


Thanks, the 15% number is what I was after.
Still would be nice to be able to know the procedure. Only reason
to keep stuff secret is that it's somehow misleading and can't stand
scrutiny.


** It ain't actually secret - it's just well protected by copyright.

So you 'as to pay to know.

Keeps out the riff-raff who are merely curious ....




..... Phil