BS 2782-5 Method 552A-1999是關(guān)于《塑料試驗方法.風(fēng)化后光學(xué)和顏色特性.在透過玻璃的日光、自然風(fēng)化和試驗室光源下暴露后顏色和特性變化的測定》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
微信號