本文件是一份工程文件，适用于验证器制造商和应用 规范开发者。 本文件描述了对ISO/IEC 15415中定义的符号质量方法的修改 以及符号规范。它定义了替代照明条件、一些新术语和 参数、测量修改和某些参数的后续分级，以及 报告评分结果。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document is an engineering document intended for verifier manufacturers and application specification developers. This document describes modifications to the symbol quality methodology defined in ISO/IEC 15415 and a symbology specification. It defines alternative illumination conditions, some new terms and parameters, modifications to the measurement and subsequent grading of certain parameters and the reporting of the grading results.All current amendments available at time of purchase are included with the purchase of this document.