ISO 4628-10:2024 色漆和清漆 缺陷的数量和大小以及外观均匀变化程度的评价 第10部分：丝状腐蚀等级的评定

标准编号：ISO 4628-10:2024

中文名称：色漆和清漆 缺陷的数量和大小以及外观均匀变化程度的评价 第10部分：丝状腐蚀等级的评定

英文名称：Paints and varnishes — Evaluation of quantity and size of defects, and of intensity of uniform changes in appearance — Part 10: Assessment of degree of filiform corrosion

发布日期：2024-03

标准范围

本文件规定了一种通过测量最长细丝L的长度和细丝最频繁的长度M来评估从划线标记产生的丝状腐蚀量的方法。附件中提供的图示示例？本文件的a说明了丝状腐蚀程度的不同等级。测试面板与12？附件中的图片？a不能取代强制性的数值评估（方法？1还是？2）.伊索？4628-1定义了用于指定缺陷的数量和尺寸以及涂层外观均匀变化强度的系统，并概述了该系统的一般原理。该系统尤其旨在用于由老化和风化引起的缺陷，以及用于均匀变化，例如颜色变化，例如发黄。

This document specifies a method for assessing the amount of filiform corrosion developed from a scribed mark by measuring the length of the longest filament L and the most frequent length M of filaments.

Pictorial examples provided in Annex A of this document illustrate different ratings for the degree of filiform corrosion. A comparison of the test panels with the 12 pictures in Annex A does not supersede the obligatory numerical assessment (method 1 or 2).

ISO 4628-1 defines a system used for designating the quantity and size of defects and the intensity of uniform 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.

标准预览图