商业印刷品的耐久性与稳定性 室内或遮蔽户外条件下的背光展示：光稳定性

[中文适用范围]： 1 适用范围 本标准规定了背光照明的透明或半透明薄膜、透明或半透明片材，以及纸质或纺织材料上印刷品的光稳定性测试方法。此类印刷品适用于安装在室内或遮荫的室外环境中的背光源展示装置，且该装置须能防直接降水及辐射加热。未设置遮荫、直接暴露于天气环境及/或辐射加热下的户外背光源展示装置所安装的印刷品，不属于本标准的适用范围。 本标准适用于适用于背光照明的各类“商业印刷品”，其中常包含文字、图像以及/或艺术作品的组合。本标准提供了色度测量、数据分析的指导原则，并给出了如何结合背光照示设计的多样性与环境条件的变异性，将测试结果转化为合适的图像耐久性性能声明的指南。 本标准适用于模拟印刷与数字印刷品。所规定的方法与原则同时适用于彩色与单色印刷品。 注：本文件规定的测试方法不专门针对博物馆背光照明的特殊测试要求，但其中部分要素（如双向照射）也可考虑用于博物馆语境，具体要求需由相关方另行定义。 [外文原描述]： This document specifies the test method for light stability measurements of prints on transparent or translucent foils, transparent or translucent film, and paper or printed on a textile, which are displayed on backlit units installed in indoor or in shaded outdoor conditions, which are protected against direct precipitation and radiative heating. Installations of backlit display units in outdoor areas without shading, which are exposed to direct weathering and/or radiative heating, are excluded. This document is applicable to the various product classes of “commercial prints” that are suitable for backlit display. These commercial prints often contain combinations of text, pictorial images and/or artwork. This document provides guidelines for colour measurements, data analysis, and also provides guidance for translation of test results into suitable image permanence performance claims considering the variability of backlit designs and environmental conditions. This document is applicable to both analogue and digitally printed matter. Methods and principles apply to both colour and monochrome prints. NOTE The test method in this document does not address the specific requirements for testing museum backlit display, however, some of the elements in this test method (such as exposure in both directions) can also be considered in museum context with details defined by ISO/TS 18950.