INTERNATIONAL ISO STANDARD 4892-2 Plastics-Methods of exposure to laboratory light sources- Part 2: Xenon-arc lamps （PDF免費下載）

1 Scope

This part of ISO 4892 specifies methods for exposing specimens to xenon-arc light in the presence oft moisture to reproduce the weathering effects that occur when materials are exposed in actual end-use environments to daylight or to daylight filtered through window glass

The specimens are exposed to filtered xenon-arc light under controlled conditions(temperature, humidity and/or wetting).Various types of xenon-arc light source and various filter combinations may be used to meet different requirements

Specimen preparation and evaluation of the results are covered in other International Standards for specific materials.

General guidance is given in IS4892-1.

NOTE Xenon-arc exposures of paints and varnishes are described in ISO 11341. 

2 Normativereferences

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references,the latest edition of the referencec 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

ISO4892-1Plastics-Methods ofexposure to laboratory light sources-Part 1:General guidance