NEN NPR ISO/TR 24430 : 2003

Provides the following purposes of the guidelines: - to give recommendations on how to introduce precision statements into an International Standard which specifies a test method for paints, varnishes, related materials and coatings derived from them; - to outline the general principles to be applied when assessing precision in order to establish the procedures which will enable a quantitative estimate to be made; - to outline the general principles under which interlaboratory trials should be conducted.