State Scientific Research Laboratory for
Quality Control of Medicines

Evaluation of measurement uncertainty for quantitative determination methods according to the procedure of the Ukrainian Pharmacopoeia

Measured variable ‘y’ is a function ‘n’ of independent values xi, for each known uncertainty

y=f(x1, x2, ... xn)

if a functional relationship is represented as:

where K – is a constant number, than a calculation can be made on this web-page.

Step 1. Please enter the parameters:

1) n - number of parameters in a formula:
2) n1 - number of parameters in a formula defined as average during repeated calculations (Type A):
3) n2 - number of parameters in a formula for which the uncertainty is known (Type B):
The following equation must be respected n=n1+n2
4) Resulting value of y: