1.1 This part of ISO 5725 -- amplifies the general principles to be observed in designing experiments for the numerical estimation of the precision of measurement methods by means of a collaborative interlaboratory experiment; -- provides a detailed practical description of the basic method for routine use in estimating the precision of measurement methods; -- provides guidance to all personnel concerned with designing, performing or analysing the results of the tests for estimating precision. NOTE 1 Modifications to this basic method for particular purposes are given in other parts of ISO 5725. Annex B provides practical examples of estimating the precision of measurement methods by experiment. 1.2 This part of ISO 5725 is concerned exclusively with measurement methods which yield measurements on a continuous scale and give a single value as the test result, although this single value may be the outcome of a calculation from a set of observations.