BS 2782-5 Method 552A-1999是關(guān)于《塑料試驗(yàn)方法.風(fēng)化后光學(xué)和顏色特性.在透過(guò)玻璃的日光、自然風(fēng)化和試驗(yàn)室光源下暴露后顏色和特性變化的測(cè)定》的方法。
Methods of testing plastics - Optical and colour properties, weathering - Determination of changes in colour and variations in properties after exposure to daylight under glas
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