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iso 4892-1:2016(e) the measurement of the irradiance and radiant exposure in the plane of the specimen, the temperature of specified white and black sensors, the chamber air temperature and the relative humidity.
International Standard ISO 4892-1 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 6, Ageing, chemical and environmental resistance. This second edition cancels and replaces the first edition (ISO 4892-1:1994), of which it constitutes a technical revision.
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This second edition cancels and replaces the first edition (ISO 4892-1:1994), of which it constitutes a technical revision. ISO 4892 consists of the following parts, under the general title Plastics Methods of explosure to laboratory light sources: Part 1: General guidance; Part 2: Xenon-arc sources; Part 3: Fluorescent UV lamps;
ISO 4892-1:2016 provides information and general guidance relevant to the selection and operation of the methods of exposure described in detail in subsequent parts. It also describes general performance requirements for devices used for exposing plastics to laboratory light sources.
ISO 4892-1:2016(E) Introduction Plastics are often used outdoors or in indoor locations where they are exposed to solar radiation or to solar radiation behind glass for long periods. It is therefore very important to determine the effects of solar radiation, heat, moisture and other climatic stresses on the colour and other properties of plastics.
