GB/T15596—1995 塑料暴露于玻璃下日光或自然气候或人工光后颜色和性能变化的测定(eqvISO4582:1980)GB/T16422.1—1996 塑料实验室光源暴露试验方法 第1部分：通则(eqvISO4892.1-1994)
英文摘要
ISO4892-2:2013 specifies methods for exposing specimens to xenon-arc light in thepresence of moisture to reproduce the weathering effects (temperature, humidityand/or wetting) that occur when materials are exposed in actual end-useenvironments to daylight or to daylight filtered through window glass.
1 Scope
This part of ISO 4892specifies methods for exposing specimens to xenon-arc light in the presence of moisture to reproduce theweathering effects that occur when materials are exposed in actual end-use environments to daylight orto daylight filtered through window glass.The specimens are exposedto filtered xenon-arc light under controlled conditions (temperature, humidity and/or wetting). Varioustypes of xenon-arc light source and various filter combinations may be used tomeet different requirements.Specimen preparation andevaluation of the results are covered in other International Standards forspecific materials.
General guidance is givenin ISO 4892-1.NOTE Xenon-arc exposures ofpaints and varnishes are described in ISO 11341.
2 Normative references
The following referenceddocuments are indispensable for the application of this document. For dated references, only theedition cited applies. For undated references, the latest edition of thereferenced document (including anyamendments) 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
3 Principle
3.1 A xenon arc, fittedwith suitable filters and properly maintained, is used to simulate the spectralpower distribution of daylight inthe ultraviolet (UV) and visible regions of the spectrum.
3.2 Specimens are exposedto various levels of light, heat, relative humidity and water (see 3.4) under controlled environmental conditions.
3.3 The exposure conditionsmay be varied by selection of
a) the light filter(s);
b) the irradiance level;
Q-Sun各型号氙灯试验箱用于ISO 4892-2的具体设置
如需更多标准的信息请致电【400-680-8138】或访问http://www.laohuashiyanxiang.com/bz144.html