ISO/TC 114/SC 11 - Indication of accuracy

This document specifies the procedure for evaluating the accuracy of quartz watches, individually and by lots (see Annex A which presents the methods for statistical evaluation of accuracy by lot), and the relationship between the accuracy tested and the accuracy classification given by the manufacturer. It applies to quartz watches having accompanying documents on which the accuracy classification is indicated.

ISO 10553:2003 specifies the procedure for evaluating the accuracy of quartz watches, individually and by lot, and the relationship between the accuracy tested and the accuracy classification given by the manufacturer. It applies to quartz watches having accompanying documents on which the accuracy classification is indicated.

Describes a proposed method for the evaluation of the accuracy of quartz watches. Applies to quartz watches whose accuracy is indicated by the manufacturer. Defines the term "accuracy" and specifies test methods for its evaluation.