Tne results given in Tables 1 and 3 show that the ratios of the results for sam- ples analyzed in the same laboratory are close to the ratios obtain& in another laboratory
even when the absolute values were different. This means that the reproducibility can be
considerably improved ty use of reference standards.
4) The reproducibility was substantially higher than the repeatability (see Tables 2 and 4).
From the reasons given in 11, good reproducibility can be hardly expected; similarly this
is me case with other methods for the estimation of oxidative rancidityr havever, the determination
of rancidity is mostly used for comparison of various samples within a laboratory.
For this application the method is suitable.