BS 2782-5 Method 540B-1982 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).
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BS 2782-5 Method 540B-1982 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).
...