Good grief folks.....why the fuss?
If you are in the U.S., then go to
http://www.ncsli.org and look around till you find ANSI/NCSL Z540-2-1997 and buy it.....then go download TN 1297 (I believe I got the right number).....
Now, we are past that I hope, so let's get real.....uncertainty tells you what the error is in a given measurement....nothing more, nothing less.....it is NOT a be all to end all or a Holy Grail or any of that.....
The GUM, including the US GUM is the most boring document I know.....I have read Government technical procedures that are more exciting.....
You don't use the gum for its excitement.....you use it for its technical content.....for that it is great!
I have a standing challenge BTW.....if you start at the first paragraph of Chapter One and get through the first ten pages without either going to sleep or otherwise loosing focus, I got the first round.....I know exactly one person who I truly believe has done that and he does not drink.....
So let's get real about 17025.....
This is an integrated Standard.....take any Clause by itself including uncertainty and you gt a distorted picture.....look at the whole, where the Clauses describe parts of the whole.....don't take ANY Clause as the whole.....
Hope this helps.....