標準號：BS EN 13523-12-2004
中文標準名稱：卷材覆層金屬.試驗方法.耐劃痕
英文標準名稱：Coil coated metals - Test methods - Resistance to scratching
標準類型：A29
發布日期：2004/11/25 12:00:00
實施日期：2004/11/25 12:00:00
中國標準分類號：A29
國際標準分類號：25.220.60
適用范圍：This part of EN 13523 describes the procedure for determining the resistance of an organic coating on a metallic substrate to penetration by scratching with a needle. It is possible that with some aluminium alloys and thin gauge steel substrate below 0,4 mm, that rather than scratching, the needle will deform the substrate. Under these conditions this test method is not applicable. Soft coatings such as poly vinyl chloride (PVC) and structured coatings will not give a precise result due to the soft nature of the coating and/or the potential for the needle to snag. The method is not applicable to conductive coatings.