Preparation of steel substrates before application of paints and related products - Specifications for non-metallic blast-cleaning abrasives - Part 10: Almandite garnet (ISO 11126-10:2025)

This document specifies requirements for almandite garnet abrasives, as supplied for blast-cleaning.
It specifies ranges of particle sizes and values for apparent density, Mohs hardness, moisture content, conductivity of aqueous extract and water-soluble chlorides.
The requirements specified in this document apply to abrasives supplied in the new condition only.
They do not apply to abrasives either during or after use.
Test methods for non-metallic blast-cleaning abrasives are given in the various parts of the ISO 11127 series.
NOTE            Although this document has been developed specifically to meet requirements for preparation of steelwork, the properties specified are generally appropriate for use when preparing other material surfaces, or components, using blast- cleaning techniques. These techniques are described in ISO 8504-2.[1]

Vorbereitung von Stahloberflächen vor dem Auftragen von Beschichtungsstoffen - Anforderungen an nichtmetallische Strahlmittel - Teil 10: Granat (Almandin) (ISO 11126-10:2025)

Préparation des subjectiles d'acier avant application de peintures et de produits assimilés - Spécifications pour abrasifs non métalliques destinés à la préparation par projection - Partie 10: Grenat almandin (ISO 11126-10:2025)

Le présent document spécifie les exigences relatives aux abrasifs constitués de grenat almandin tels qu’ils sont fournis pour la préparation par projection.
Il spécifie les intervalles granulométriques et les valeurs de masse volumique apparente, la dureté Mohs, la teneur en humidité, la conductivité de l’extrait aqueux ainsi que la teneur en chlorures solubles dans l’eau.
Les exigences spécifiées dans le présent document s’appliquent aux abrasifs fournis à l’état neuf uniquement.
Elles ne s’appliquent pas aux abrasifs pendant ou après utilisation.
Les méthodes d’essai relatives aux abrasifs non métalliques destinés à la préparation par projection sont indiquées dans les différentes parties de la série ISO 11127.
NOTE            Bien que le présent document ait été spécialement élaboré pour satisfaire aux exigences de préparation des ouvrages en acier, les propriétés spécifiées sont généralement appropriées à la préparation de subjectiles ou éléments d’autres matériaux, par les techniques de décapage par projection. Ces techniques sont décrites dans l’ISO 8504-2[1].

Priprava jeklenih podlag pred nanašanjem barv in sorodnih premazov - Specifikacije za nekovinske granulate za peskanje - 10. del: Almanditni granat (ISO 11126-10:2025)

General Information

Status
Published
Public Enquiry End Date
02-Apr-2025
Publication Date
19-Jan-2026
Technical Committee
IBLP - Paints and varnishes
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
19-Dec-2025
Due Date
23-Feb-2026
Completion Date
20-Jan-2026

Relations

Effective Date
01-Feb-2026

Overview

SIST EN ISO 11126-10:2026 is an international standard published by CEN which specifies the requirements for almandite garnet abrasives used in blast-cleaning prior to the application of paints and related products. This standard is part 10 in the ISO 11126 series addressing non-metallic blast-cleaning abrasives for steel substrate preparation. Its guidelines apply exclusively to abrasives supplied in their new condition and focus on defining particle size ranges, hardness, moisture content, and impurity levels to ensure optimal surface preparation quality.

Key highlights include:

  • Specification of particle size distributions for almandite garnet abrasives
  • Criteria for apparent density, Mohs hardness, moisture, conductivity, and soluble chloride content
  • Applicable exclusively to new abrasives, not to those during or after use
  • Test methods referenced from the ISO 11127 series
  • Intended primarily for steel substrate preparation but also relevant for other materials using blast-cleaning

Key Topics

1. Almandite Garnet Abrasive Specification
Almandite garnet is a natural iron aluminum silicate mineral used as a blast-cleaning abrasive. This standard defines:

  • Particle size ranges from 0.038 mm up to 2.36 mm, with detailed sieve size proportions
  • Minimum Mohs hardness of 6 to ensure effective abrasive action
  • Apparent density values between 3.9 to 4.2 kg/dm³ for consistent performance
  • Maximum moisture content of 0.2% by mass to avoid clumping
  • Conductivity limit of 250 μS/cm and water-soluble chlorides capped at 0.0025% to prevent corrosion and surface contamination

2. Identification and Marking
Abrasives are designated using the format:
Abrasive ISO 11126 N/GA/G [particle size range]
which ensures clear communication of abrasive type, form (grit), and size for ordering and traceability.

3. Sampling and Testing
Sampling procedures follow ISO 11127-1, with testing conforming to parts 2 through 7 of the ISO 11127 series for size, density, hardness, moisture, conductivity, and chloride content.

4. Safety Considerations
Users are warned about potential hazards associated with blast-cleaning equipment and abrasive materials, emphasizing adherence to health and safety practices when handling abrasive media, especially concerning free silica or potentially toxic components.

Applications

SIST EN ISO 11126-10:2026 is essential for industries requiring surface preparation before coating, including:

  • Steel structure fabrication: Ensures optimal surface cleanliness and profile for protective coatings on bridges, buildings, and industrial equipment
  • Marine and offshore industries: Prevents corrosion by using abrasives that meet specified chloride and contaminant limits
  • Automotive and aerospace: Surface prep for metal parts requiring high-quality paint or protective coatings
  • General blast-cleaning operations: Versatile use beyond steel for preparing various materials using abrasive blasting techniques as described in ISO 8504-2

Using almandite garnet abrasives conforming to this standard helps achieve consistent surface profiles, enhances coating adhesion, and extends the life of protective paints and related products.

Related Standards

  • ISO 11126 Series – Covers specifications and test methods for various non-metallic blast-cleaning abrasives
  • ISO 8504-2 – Describes abrasive blast-cleaning techniques for surface preparation
  • ISO 11127-1 to -7 – Test methods for sampling and analyzing non-metallic abrasives regarding particle size, density, hardness, moisture, and contaminants
  • ISO/IEC Directives – Defines standard development and maintenance procedures referenced by ISO publications

By adhering to SIST EN ISO 11126-10:2026, manufacturers and users of almandite garnet abrasives ensure compliance with stringent international requirements, resulting in superior blast-cleaning outcomes and enhanced durability of painted steel substrates. This standard supports quality assurance in industrial surface preparation processes worldwide.

Standard

SIST EN ISO 11126-10:2026

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Frequently Asked Questions

SIST EN ISO 11126-10:2026 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Preparation of steel substrates before application of paints and related products - Specifications for non-metallic blast-cleaning abrasives - Part 10: Almandite garnet (ISO 11126-10:2025)". This standard covers: This document specifies requirements for almandite garnet abrasives, as supplied for blast-cleaning. It specifies ranges of particle sizes and values for apparent density, Mohs hardness, moisture content, conductivity of aqueous extract and water-soluble chlorides. The requirements specified in this document apply to abrasives supplied in the new condition only. They do not apply to abrasives either during or after use. Test methods for non-metallic blast-cleaning abrasives are given in the various parts of the ISO 11127 series. NOTE            Although this document has been developed specifically to meet requirements for preparation of steelwork, the properties specified are generally appropriate for use when preparing other material surfaces, or components, using blast- cleaning techniques. These techniques are described in ISO 8504-2.[1]

This document specifies requirements for almandite garnet abrasives, as supplied for blast-cleaning. It specifies ranges of particle sizes and values for apparent density, Mohs hardness, moisture content, conductivity of aqueous extract and water-soluble chlorides. The requirements specified in this document apply to abrasives supplied in the new condition only. They do not apply to abrasives either during or after use. Test methods for non-metallic blast-cleaning abrasives are given in the various parts of the ISO 11127 series. NOTE            Although this document has been developed specifically to meet requirements for preparation of steelwork, the properties specified are generally appropriate for use when preparing other material surfaces, or components, using blast- cleaning techniques. These techniques are described in ISO 8504-2.[1]

SIST EN ISO 11126-10:2026 is classified under the following ICS (International Classification for Standards) categories: 25.220.10 - Surface preparation; 87.020 - Paint coating processes. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN ISO 11126-10:2026 has the following relationships with other standards: It is inter standard links to SIST EN ISO 11126-10:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN ISO 11126-10:2026 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)


SLOVENSKI STANDARD
01-februar-2026
Nadomešča:
SIST EN ISO 11126-10:2018
Priprava jeklenih podlag pred nanašanjem barv in sorodnih premazov -
Specifikacije za nekovinske granulate za peskanje - 10. del: Almanditni granat (ISO
11126-10:2025)
Preparation of steel substrates before application of paints and related products -
Specifications for non-metallic blast-cleaning abrasives - Part 10: Almandite garnet (ISO
11126-10:2025)
Vorbereitung von Stahloberflächen vor dem Auftragen von Beschichtungsstoffen -
Anforderungen an nichtmetallische Strahlmittel - Teil 10: Granat (Almandin) (ISO 11126-
10:2025)
Préparation des subjectiles d'acier avant application de peintures et de produits
assimilés - Spécifications pour abrasifs non métalliques destinés à la préparation par
projection - Partie 10: Grenat almandin (ISO 11126-10:2025)
Ta slovenski standard je istoveten z: EN ISO 11126-10:2025
ICS:
25.220.10 Priprava površine Surface preparation
87.020 Postopki za nanašanje Paint coating processes
barvnih premazov
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 11126-10
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2025
EUROPÄISCHE NORM
ICS 25.220.10 Supersedes EN ISO 11126-10:2017
English Version
Preparation of steel substrates before application of paints
and related products - Specifications for non-metallic
blast-cleaning abrasives - Part 10: Almandite garnet (ISO
11126-10:2025)
Préparation des subjectiles d'acier avant application de Vorbereitung von Stahloberflächen vor dem Auftragen
peintures et de produits assimilés - Spécifications pour von Beschichtungsstoffen - Anforderungen an
abrasifs non métalliques destinés à la préparation par nichtmetallische Strahlmittel - Teil 10: Granat
projection - Partie 10: Grenat almandin (ISO 11126- (Almandin) (ISO 11126-10:2025)
10:2025)
This European Standard was approved by CEN on 21 November 2025.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11126-10:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 11126-10:2025) has been prepared by Technical Committee ISO/TC 35 "Paints
and varnishes" in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” the
secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2026, and conflicting national standards shall be
withdrawn at the latest by May 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 11126-10:2017.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 11126-10:2025 has been approved by CEN as EN ISO 11126-10:2025 without any
modification.
International
Standard
ISO 11126-10
Third edition
Preparation of steel substrates
2025-11
before application of paints and
related products — Specifications
for non-metallic blast-cleaning
abrasives —
Part 10:
Almandite garnet
Préparation des subjectiles d'acier avant application de peintures
et de produits assimilés — Spécifications pour abrasifs non
métalliques destinés à la préparation par projection —
Partie 10: Grenat almandin
Reference number
ISO 11126-10:2025(en) © ISO 2025

ISO 11126-10:2025(en)
© 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
ISO 11126-10:2025(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Designation of abrasives . 2
5 Sampling . 3
6 Requirements . 3
6.1 General requirements .3
6.2 Specific requirements .3
7 Identification and marking. 4
8 Information to be provided by the manufacturer or supplier . 4
Bibliography . 5

iii
ISO 11126-10:2025(en)
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 diffe
...

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