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ISO 8504-4:2022

Preparation of steel substrates before application of paints and related products — Surface preparation methods — Part 4: Acid pickling

General information

Valid from 11.08.2022
ICS Groups
25.220.10 Surface preparation
Directives or regulations
None

Standard history

Status
Date
Type
Name
11.08.2022
Main
ISO 8504-4:2022
This document describes the typical method for acid pickling generally used in a shop facility for the preparation of steel substrates before application of paints and related products. It is in general applicable to new steelwork.
This method is essentially intended to remove rust and mill scale. Typically, only slight oil residues can be removed during this process. It can be used on steel surfaces that are easily deformed by abrasive blasting.

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Standard monitoring
English (PDF 864 KB)

Related products

Main

EVS-EN ISO 12944-4:2018

Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 4: Types of surface and surface preparation (ISO 12944-4:2017)
Newest version Valid from 16.01.2018
Main

EVS-EN ISO 8501-3:2008

Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 3: Preparation grades of welds, edges and other areas with surface imperfections
Newest version Valid from 07.03.2008
Main

EVS-EN ISO 8503-2:2012

Preparation of steel substrates before application of paints and related products - Surface roughness characteristics of blast-cleaned steel substrates - Part 2: Method for the grading of surface profile of abrasive blast-cleaned steel - Comparator procedure (ISO 8503-2:2012)
Newest version Valid from 04.04.2012
Main

EVS-EN ISO 8503-1:2012

Preparation of steel substrates before application of paints and related products - Surface roughness characteristics of blast-cleaned steel substrates - Part 1: Specifications and definitions for ISO surface profile comparators for the assessment of abrasive blast-cleaned surfaces (ISO 8503-1:2012)
Newest version Valid from 04.04.2012

Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English