Standard set of terms for precision, accuracy, related concepts.

[Hal Murray]

> Can someone find a citation for best practice on parts-per-thousand?
> Wikipedia says ppt is used in some disciplines for this. 

I've seen PPM and PPB in frequent use.

I don't remember seeing PPT or PPK.  PPT I would probably figure out from the 
context right away.  PPK would take me a bit longer.  At that small a range 
I'd expect to see percentages.


-- 
These are my opinions.  I hate spam.