BS 2782-5.540D(1999) : 1999 AMD 13148
Superseded
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METHODS OF TESTING PLASTICS - OPTICAL AND COLOUR PROPERTIES, WEATHERING - METHODS OF EXPOSURE TO LABORATORY LIGHT SOURCES - GENERAL GUIDANCE
17-09-2001
23-11-2012
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
4.1 Significance
4.2 Use of accelerated tests with laboratory light sources
5 Requirements for laboratory exposure devices
5.1 Light source
5.2 Temperature
5.3 Humidity and wetting
5.4 Other apparatus requirements
6 Test specimens
6.1 Form, shape and preparation
6.2 Number of test specimens
6.3 Storage and conditioning
7 Test conditions and procedure
8 Precision and bias
8.1 Precision
8.2 Bias
9 Test report
Annex A (informative) Factors that decrease the degree or correlation
between accelerated tests using laboratory light
sources and actual-use exposures
Annex B (informative) Procedures for measuring the irradiance uniformity
in the specimen exposure area
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