ISO 8501-4:2020

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 water jetting
Autor: ISO
Código ICS: 25.220.10
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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.

Especificaciones de la Norma
Fecha de Publicación 15/10/2020
Título Secundario Préparation des subjectiles d'acier avant application de peintures et de produits assimilés -- Évaluation visuelle de la propreté d'un subjectile -- Partie 4: États de surface initiaux, degrés de préparation et degrés de fleurette de rouille après décapage à l'eau sous haute pression
Páginas Técnicas 27
Idioma Inglés