Preparation of steel substrates before application of paints and related products — Specifications for non-metallic blast-cleaning abrasives — Part 1: General introduction and classification

This document describes a classification of non-metallic blast-cleaning abrasives for the preparation of steel substrates before application of paints and related products. It specifies the characteristics which are required for the complete designation of such abrasives. This document applies to abrasives supplied in the new or unused condition only. It does not apply to abrasives either during or after use. NOTE Although this document has been developed specifically to meet requirements for preparation of steelwork, the properties specified will generally be appropriate for use when preparing other material surfaces, or components, using blast-cleaning techniques. These techniques are described in ISO 8504-2.

Préparation des subjectiles d’acier avant application de peintures et de produits assimilés — Spécifications des abrasifs non métalliques destinés au décapage par projection — Partie 1: Introduction générale et classification

Le présent document décrit une classification des abrasifs non métalliques destinés au décapage par projection des subjectiles d’acier avant application de peintures et produits assimilés. Il spécifie les caractéristiques exigées pour une désignation complète de ces abrasifs. Le présent document ne s’applique qu’aux abrasifs fournis à l’état neuf ou non utilisé. Il ne s’applique pas aux abrasifs pendant ou après leur utilisation. NOTE Bien que le présent document ait été spécifiquement élaboré pour satisfaire aux exigences de préparation d’ouvrages en acier, les propriétés spécifiées conviennent de manière générale pour une utilisation dans la préparation d’autres surfaces de matériaux ou d’autres composants par des techniques de décapage à l’abrasif. Ces techniques sont décrites dans l’ISO 8504‑2.

General Information

Status
Published
Publication Date
17-Jul-2025
Current Stage
6060 - International Standard published
Start Date
18-Jul-2025
Due Date
13-Jun-2026
Completion Date
18-Jul-2025

Relations

Effective Date
12-Feb-2026
Effective Date
17-Jun-2023
Effective Date
17-Jun-2023

Overview

ISO 11126-1:2025 defines the general principles and classification system for non-metallic blast-cleaning abrasives used in the preparation of steel substrates before the application of paints and related products. Developed by the International Organization for Standardization (ISO), this standard establishes the characteristics necessary for the full designation of new or unused abrasives, supporting quality, consistency, and safety in industrial surface preparation. While tailored for steelwork, the guidance in this standard is also applicable to blast-cleaning other materials or components.

Key Topics

Classification of Non-Metallic Blast-Cleaning Abrasives

  • Abrasive Type: Materials are classified by their origin (natural or synthetic), such as olivine, garnet, slag, or fused aluminium oxide.
  • Initial Particle Shape: Two primary shapes are identified for classification:
    • Shot (S): Predominantly round particles.
    • Grit (G): Angular particles with fractured faces and sharp edges.
  • Particle Size Range: Abrasives are further classified based on a specified range of particle sizes to control the resulting surface profile.
  • Designation and Identification: The standard prescribes a systematic designation (e.g., Abrasive ISO 11126 N/CS/G 0,2–0,5) that must be cited on packaging and order documentation, ensuring clear communication of abrasive properties.

Scope and Limitations

  • Applies only to new or unused non-metallic abrasives.
  • Excludes abrasives during or after use.
  • Primarily developed for steel surface preparation but suitable for other substrate types.

Safety Considerations

  • Highlights the potential hazards associated with equipment and materials used in abrasive blast-cleaning.
  • Emphasizes the importance of adequate instructions and safety precautions.

Applications

Industrial and Protective Coatings

  • Steel Surface Preparation: Ensures optimal adhesion and performance of paints and coatings by delivering standardized surface cleanliness.
  • Manufacturing and Maintenance: Applied across shipyards, bridge construction, pipelines, and industrial facilities requiring reliable paint system performance.
  • Other Substrate Preparation: While focused on steel, the standard’s classification system and requirements are applicable when preparing other materials using blast-cleaning techniques.

Quality Assurance and Procurement

  • Facilitates accurate ordering and consistent supply of appropriate blast-cleaning abrasives by requiring complete product designation.
  • Supports compliance in projects driven by international standards or customer specifications.

Related Standards

Adherence to ISO 11126-1:2025 is often combined with other internationally recognized standards for comprehensive surface preparation and quality control:

  • ISO 8504-2: Methods for abrasive blast-cleaning of substrates prior to coating.
  • ISO 8503-2: Surface roughness assessment of blast-cleaned substrates using comparator procedures.
  • ISO 11126 Series: Additional parts providing detailed specifications for individual non-metallic abrasive types.
  • ISO 11127 Series: Test methods for non-metallic blast-cleaning abrasives, ensuring conformity to required specifications.
  • ISO 11124 & ISO 11125 Series: Specifications and test methods for metallic blast-cleaning abrasives.

Practical Value

ISO 11126-1:2025 delivers practical benefits by promoting:

  • Consistency in abrasive quality and performance.
  • Efficiency in procurement and project specification processes.
  • Safety through clear guidelines on product identification and hazards.
  • Compatibility with other standards, enabling smooth integration into existing industrial coating and maintenance protocols.

Implementing ISO 11126-1:2025 in your surface preparation processes ensures high-quality results, reduces the risk of coating failure, and demonstrates compliance with global industry expectations.

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ISO 11126-1:2025 - Preparation of steel substrates before application of paints and related products — Specifications for non-metallic blast-cleaning abrasives — Part 1: General introduction and classification Released:18. 07. 2025

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ISO 11126-1:2025 - Préparation des subjectiles d’acier avant application de peintures et de produits assimilés — Spécifications des abrasifs non métalliques destinés au décapage par projection — Partie 1: Introduction générale et classification Released:28. 07. 2025

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Frequently Asked Questions

ISO 11126-1:2025 is a standard published by the International Organization for Standardization (ISO). Its full title is "Preparation of steel substrates before application of paints and related products — Specifications for non-metallic blast-cleaning abrasives — Part 1: General introduction and classification". This standard covers: This document describes a classification of non-metallic blast-cleaning abrasives for the preparation of steel substrates before application of paints and related products. It specifies the characteristics which are required for the complete designation of such abrasives. This document applies to abrasives supplied in the new or unused condition only. It does not apply to abrasives either during or after use. NOTE Although this document has been developed specifically to meet requirements for preparation of steelwork, the properties specified will generally be appropriate for use when preparing other material surfaces, or components, using blast-cleaning techniques. These techniques are described in ISO 8504-2.

This document describes a classification of non-metallic blast-cleaning abrasives for the preparation of steel substrates before application of paints and related products. It specifies the characteristics which are required for the complete designation of such abrasives. This document applies to abrasives supplied in the new or unused condition only. It does not apply to abrasives either during or after use. NOTE Although this document has been developed specifically to meet requirements for preparation of steelwork, the properties specified will generally be appropriate for use when preparing other material surfaces, or components, using blast-cleaning techniques. These techniques are described in ISO 8504-2.

ISO 11126-1:2025 is classified under the following ICS (International Classification for Standards) categories: 25.220.10 - Surface preparation. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO 11126-1:2025 has the following relationships with other standards: It is inter standard links to EN ISO 11126-1:2025, ISO 24251-1:2025, ISO 11126-1:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

ISO 11126-1:2025 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


International
Standard
ISO 11126-1
Third edition
Preparation of steel substrates
2025-07
before application of paints and
related products — Specifications
for non-metallic blast-cleaning
abrasives —
Part 1:
General introduction and
classification
Préparation des subjectiles d’acier avant application de peintures
et de produits assimilés — Spécifications des abrasifs non
métalliques destinés au décapage par projection —
Partie 1: Introduction générale et classification
Reference number
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification . 2
4.1 Abrasive type .2
4.2 Initial particle shape .2
4.3 Particle size range .2
5 Designation of abrasives . 3
6 Identification and marking. 3
Bibliography . 4

iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 12,
Preparation of steel substrates before application of paints and related products, in collaboration with the
European Committee for Standardization (CEN) Technical Committee CEN/TC 139, Paints and varnishes, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 11126-1:2018), which has been technically
revised.
The main changes are as follows:
— Table 1, Table 2 have been technically revised to incorporate new abrasives;
— Annex A has been removed.
A list of all parts in the ISO 11126 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
Introduction
This document is one of a number of parts of the ISO 11126 series specifying requirements for non-metallic
abrasives for blast-cleaning.
Test methods for non-metallic blast-cleaning abrasives are given in the various parts of the ISO 11127 series
The requirements for metallic abrasives commonly used for blas
...


Norme
internationale
ISO 11126-1
Troisième édition
Préparation des subjectiles d’acier
2025-07
avant application de peintures
et de produits assimilés —
Spécifications des abrasifs non
métalliques destinés au décapage
par projection —
Partie 1:
Introduction générale et
classification
Preparation of steel substrates before application of paints and
related products — Specifications for non-metallic blast-cleaning
abrasives —
Part 1: General introduction and classification
Numéro de référence
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2025
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii
Sommaire Page
Avant-propos .iv
Introduction .v
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Classification . 2
4.1 Type d’abrasif .2
4.2 Forme initiale des particules .2
4.3 Plage granulométrique .3
5 Désignation des abrasifs . 3
6 Identification et marquage . 3
Bibliographie . 4

iii
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux
de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général
confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire
partie du comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (IEC) en ce qui concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a
été rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir
www.iso.org/directives).
L’ISO attire l’attention sur le fait que la mise en application du présent document peut entraîner l’utilisation
d’un ou de plusieurs brevets. L’ISO ne prend pas position quant à la preuve, à la validité et à l’applicabilité
de tout droit de brevet revendiqué à cet égard. À la date de publication du présent document, l’ISOn'avait
pasreçu notification qu’un ou plusieurs brevets pouvaient être nécessaires à sa mise en application.
Toutefois, il y a lieu d’avertir les responsables de la mise en application du présent document que des
informations plus récentes sont susceptibles de figurer dans la base de données de brevets, disponible à
l'adresse www.iso.org/brevets. L’ISO ne saurait être tenue pour responsable de ne pas avoir identifié tout ou
partie de tels droits de propriété.
Les appellations commerciales éventuellement mentionnées dans le présent document sont données pour
information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion de
l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles techniques au
commerce (OTC), voir www.iso.org/avant-propos.
Le présent document a été élaboré par le comité technique ISO/TC 35, Peintures et vernis, sous-comité SC 12,
Préparation des subjectiles d’acier avant application de peintures et de produits assimilés, en collaboration
avec le comité technique CEN/TC 139, Peintures et vernis, du Comité européen de normalisation (CEN)
conformément à l’Accord de coopération technique entre l’ISO et le CEN (Accord de Vienne).
Cette troisième édition annule et remplace la deuxième édition (ISO 11126-1:2018), qui a fait l’objet d’une
révision technique.
Les principales modifications sont les suivantes:
— le Tableau 1 et le Tableau 2 ont fait l’objet d’une révision technique, afin d’inclure de nouveaux abrasifs;
— l’Annexe A a été supprimée.
Une liste de toutes les parties de la série ISO 11126 se trouve sur le site Web de l’ISO.
Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent
document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes se
trouve à l’adresse www.iso.org/fr/members.html.

iv
Introduction
Le présent document constitue l’une des parties de la série ISO 11126 qui spécifie les exigences relatives aux
abrasifs non métalliques destinés au décapage par projection.
Des méthodes d’essai visant les abrasifs non métalliques destinés au décapage par projection sont données
dans les différentes parties de la série ISO 11127.
Les exigences relatives aux abrasifs métalliques couramment utilisés dans le décapage par projection sont
spécifiées dans les différentes parties de la série ISO 11124. Les méthodes d’essai servant à déterminer ces
exigences sont données dans les différentes parties de la série ISO 11125.
Les techniques de décapage par projection d’abrasif sont largement utilisées pour nettoyer et préparer des
surfaces (v
...

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