DIN EN ISO 8501-4-2007
涂料和有關產品涂覆之前鋼基片的制備.表面清潔度的目視評估.第4部分:與高壓水沖法有關的初始表面條件、制備等級和閃銹等級

Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 4: Initial surface conditions, preparation grades and flash rust grades in connection with high-pressure water jetting (ISO

DIN EN ISO 8501-4-2007 發布歷史

This part of ISO 8501 specifies a series of preparation grades for steel surfaces after removal/partial removal of water-soluble contaminants, rust, previous paint coatings and foreign matter by high-pressure water jetting. The various grades are defined by written descriptions together with photographs that are representative examples within the tolerances for each grade as described in words. In addition, this part of ISO 8501 specifies both initial surface conditions and after-cleaning flash rust grades, also defined by written descriptions together with representative photographic examples. NOTE 1 Examples of foreign matter are salt, grime, dirt, mill scale, oil, grease and marine growth, e.g. algae. This part of ISO 8501 relates the cleanliness of the surface to its visual appearance. In many instances, this is sufficient for the purpose but, for coatings likely to be exposed to severe environments, such as water immersion and continuous condensation conditions, consideration should be given to testing for soluble salts and other invisible contaminants on the visually clean surface by the physical and chemical methods which form the subjects of the various parts of ISO 8502. The roughness characteristics of the surface should also be considered by reference to ISO 8503, although it must be noted that preparation by high-pressure water jetting does not create a profile or significantly change an existing profile. NOTE 2 Water pressure, water volume, nozzle design, stand-off distance and traverse rate are factors which will affect the efficiency of removal of contaminants such as water-soluble matter, rust and paint coatings. The removal efficiency also depends on whether detergents are being used in the cleaning process. If so, rinsing afterwards with clean water is necessary.

DIN EN ISO 8501-4-2007由德國標準化學會 DE-DIN 發布于 2007-04。

DIN EN ISO 8501-4-2007 在中國標準分類中歸屬于: A29 材料防護。

DIN EN ISO 8501-4-2007 發布之時，引用了標準

• ISO 4628-3 涂料和清漆. 涂層老化評估. 缺陷數量和大小以及外觀均勻變化程度命名. 第3部分: 銹蝕程度評定
• ISO 8501-1 涂料和相關產品使用前鋼襯底的制備.表面清潔度的目測評估.第1部分:未涂覆鋼襯底和徹底清除原有涂層后鋼襯底的銹蝕等級和制備等級*， 2007-05-01 更新

* 在 DIN EN ISO 8501-4-2007 發布之后有更新，請注意新發布標準的變化。

DIN EN ISO 8501-4-2007的歷代版本如下：

• 2007年04月 DIN EN ISO 8501-4-2007 涂料和有關產品涂覆之前鋼基片的制備.表面清潔度的目視評估.第4部分:與高壓水沖法有關的初始表面條件、制備等級和閃銹等級
• 2021年02月 DIN EN ISO 8501-4-2021 涂料和有關產品涂覆之前鋼基片的制備. 表面清潔度的目視評估. 第4部分: 與水沖法有關的初始表面條件、制備等級和閃銹等級(ISO 8501-4-2020); 德文版本EN ISO 8501-4-2020

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標準號

DIN EN ISO 8501-4-2007

發布日期

2007年04月

實施日期

廢止日期

無

中國標準分類號

A29

國際標準分類號

25.220.10

發布單位

DE-DIN

引用標準

ISO 4628-3 ISO 8501-1

適用范圍

This part of ISO 8501 specifies a series of preparation grades for steel surfaces after removal/partial removal of water-soluble contaminants, rust, previous paint coatings and foreign matter by high-pressure water jetting. The various grades are defined by written descriptions together with photographs that are representative examples within the tolerances for each grade as described in words. In addition, this part of ISO 8501 specifies both initial surface conditions and after-cleaning flash rust grades, also defined by written descriptions together with representative photographic examples. NOTE 1 Examples of foreign matter are salt, grime, dirt, mill scale, oil, grease and marine growth, e.g. algae. This part of ISO 8501 relates the cleanliness of the surface to its visual appearance. In many instances, this is sufficient for the purpose but, for coatings likely to be exposed to severe environments, such as water immersion and continuous condensation conditions, consideration should be given to testing for soluble salts and other invisible contaminants on the visually clean surface by the physical and chemical methods which form the subjects of the various parts of ISO 8502. The roughness characteristics of the surface should also be considered by reference to ISO 8503, although it must be noted that preparation by high-pressure water jetting does not create a profile or significantly change an existing profile. NOTE 2 Water pressure, water volume, nozzle design, stand-off distance and traverse rate are factors which will affect the efficiency of removal of contaminants such as water-soluble matter, rust and paint coatings. The removal efficiency also depends on whether detergents are being used in the cleaning process. If so, rinsing afterwards with clean water is necessary.

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