Ehdotuksen tiedot

This document specifies several methods for preparing laboratory samples of fibres, yarns and fabrics and presents a limited treatment of the problem of drawing specimens for testing. The principle of each method is given at the beginning of the clause dealing with the method. It is not possible for the coverage of each individual procedure to be fully comprehensive; in many instances, the selection of test samples or test specimens is necessarily covered by the appropriate method of test. The selection of length-biased samples is not within the scope of this document, nor are particular procedures for the determination of commercial weights or moisture content. Annex A and tables are given in this document for general guidance in determining the size of the test sample to be taken in order that the determined sample mean has given confidence limits.