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  • BSI
    BS 2782-5:Method 540B:1982, ISO 4892:1981 Methods of testing plastics. Optical and colour properties, weathering - Methods of exposure to laboratory light sources, (xenon arc lamp, enclosed carbon arc lamp, open-flame carbon arc lamp, fluorescent tube lamps)
    Edition: 1982
    $435.35
    / user per year

Description of BS 2782-5:Method 540B:1982 1982

This International Standard specifies methods for exposing specimens to laboratory light sources in order to assess changes produced by such exposure.

The following types of light source are included:

  1. xenon arc lamp;
  2. enclosed carbon arc lamp;
  3. open-flame carbon arc lamp.

Of the different light sources, the xenon arc is advantageous in that it can, when correctly filtered and maintained, yield a spectrum most closely approximating to that of daylight. The carbon arc sources yield light which is considerably different from daylight and their use is decreasing. However, they have been found useful for some specific purposes and are still in considerable use in some countries; for this reason they have been included in this International Standard.

This International Standard also specifies means of determining radiation dosage.

For the method of determination of changes in properties after exposure, reference is made to ISO 4582.



Standard NumberBS 2782-5:Method 540B:1982, ISO 4892:1981
TitleMethods of testing plastics. Optical and colour properties, weathering - Methods of exposure to laboratory light sources, (xenon arc lamp, enclosed carbon arc lamp, open-flame carbon arc lamp, fluorescent tube lamps)
StatusDefinitive
Publication Date1982-02-26
ReplacesBS 2782:1970
Identical National Standard OfISO 4892:1981
Partially Replaced ByBS 2782-5:Method 540D:1995, BS 2782-5:Method 540G:1995
DescriptorsColour tests, Colorimetric characteristics, Polymers, Optical properties of materials, Weathering, Testing conditions, Artificial weathering tests, Plastics and rubber technology, Test specimens, Light, Plastics, Environmental testing, Accelerated testing
ICS83.080.01 Plastics in general
CommitteePRI/21
ISBN0 580 12509 2
PublisherBSI
Pages24

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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