標(biāo)準(zhǔn)號：BS EN ISO 4628-2-2003
中文標(biāo)準(zhǔn)名稱：涂料和清漆.漆膜降解的評定.缺陷的量值和大小以及外觀均勻變化強(qiáng)度的規(guī)定.起泡等級的評定
英文標(biāo)準(zhǔn)名稱：Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Assessment of degree of blistering
標(biāo)準(zhǔn)類型：G50
發(fā)布日期：2003/9/19 12:00:00
實(shí)施日期：2003/9/19 12:00:00
中國標(biāo)準(zhǔn)分類號：G50
國際標(biāo)準(zhǔn)分類號：87.040
適用范圍：This part of ISO 4628 describes a method for assessing the degree of blistering of coatings by comparison with pictorial standards. The pictorial standards provided in this part of ISO 4628 illustrate blisters in the sizes 2, 3, 4 and 5, and each size in the quantities (densities) 2, 3, 4 and 5. ISO 4628-1 defines the system used for designating the quantity and size of defects and the intensity of changes in appearance of coatings and outlines the general principles of the system. This system is intended to be used, in particular, for defects caused by ageing and weathering, and for uniform changes such as colour changes, for example yellowing.