ISO 4259:2006 PDF

Scope: This International Standard covers the calculation of precision estimates and their application to specifications. In particular, it contains definitions of relevant statistical terms (Clause 3), the procedures to be adopted in the planning of an inter-laboratory test programme to determine the precision of a test method (Clause 4), the method of calculating the precision from the results of such a programme (Clauses 5 and 6), and the procedure to be followed in the interpretation of laboratory results in relation both to precision of the test methods and to the limits laid down in specifications (Clauses 7 to 10). The procedures in this International Standard have been designed specifically for petroleum and petroleumrelated products, which are normally homogeneous. However, the procedures described in this International Standard can also be applied to other types of homogeneous products. Careful investigations are necessary before applying this International Standard to products for which the assumption of homogeneity can be questioned.

ISO 4259:2006 Referenced Document

ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method

2006 ISO 4259:2006 Petroleum products - Determination and application of precision data in relation to methods of test
1993 ISO 4259:1992/Cor 1:1993 Petroleum products; determination and application of precision data in relation to methods of test; Technical Corrigendum 1
1992 ISO 4259:1992 Petroleum products; determination and application of precision data in relation to methods of test
1979 ISO 4259:1979 Petroleum products — Determination and application of precision data in relation to methods of test