ISO 8501-4:2020 涂覆前钢基体的制备 表面洁净度的目测 第4部分：高压水冲法相关的初始表面条件、制备等级及闪锈等级

标准编号：ISO 8501-4:2020

中文名称：涂覆前钢基体的制备 表面洁净度的目测 第4部分：高压水冲法相关的初始表面条件、制备等级及闪锈等级

英文名称：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 gra

发布日期：2020-10

标准范围

本文件规定了通过高压水喷射去除/部分去除水溶性污染物、锈迹、以前的油漆涂层和其他异物后，钢表面的一系列处理等级。各种等级由书面描述和照片定义，照片是每个等级公差范围内的代表性示例，如文字所述。本文件规定了初始表面条件和清洗后的闪锈等级，也通过书面说明和代表性照片示例进行了定义。本文件将表面清洁度应用于其视觉外观。除了视觉外观外，还要考虑不可见的污染物和粗糙度或轮廓。ISO 8502系列中提供了测试目视清洁表面上可溶盐和其他不可见污染物的物理和化学方法。表面的粗糙度或轮廓特征见ISO 8503系列。

This document specifies a series of preparation grades for steel surfaces after removal/partial removal of water-soluble contaminants, rust, previous paint coatings and other 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.This document specifies both initial surface conditions and after-cleaning flash rust grades, also defined by written descriptions together with representative photographic examples.This document applies the cleanliness of the surface to its visual appearance.Consideration in addition to visual appearance is given to invisible contaminants and roughness or profile. Physical and chemical methods for testing for soluble salts and other invisible contaminants on the visually clean surface are found in the ISO 8502 series. The roughness or profile characteristics of the surface are found in the ISO 8503 series.

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