Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps 塑料---实验室光照老化测试 第二部分---氙弧灯 1 Scope This part of ISO 4892 specifies methods for exposing specimens to xenon-arc light in the presence of moisture to reproduce the weathering effects (temperature, humidity and/or wetting) that occur when materials are exposed in actual end-use environments to daylight or to daylight filtered through window glass. 此ISO 4892标准中介绍了将试样暴露在氙灯及雨淋环境中，通过模仿自然光或有窗户玻璃过滤状态下的自然环境，以确定终端客户在使用材料时受到自然气候的影响（温度，湿度/或受潮）。 Specimen preparation and evaluation of the results are covered in other International Standards for specific materials. 特殊材料试样的制备以及结果评价参考其他国际标准。 General guidance is given in ISO 4892-1. 通则见ISO 4892-1 NOTE Xenon-arc exposures of paints and varnishes are described in ISO 11341. 注：涂料及清漆的氙灯老化见 ISO 11341 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4582, Plastics — Determination of changes in colour and variations in properties after exposure to daylight under glass, natural weathering or laboratory light sources ISO 4892-1, Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance ISO 9370, Plastics — Instrumental determination of radiant exposure in weathering tests — General guidance and basic test method 3 Principle 3 原理 3 .1 A xenon arc, fitted with filters, is used to simulate the relati...
