Introduction
OIN (Organisation internationale de normalisation) est une fédération mondiale d'organismes de normalisation nationaux (Comités membres de l'ISO). L'élaboration de normes internationales est généralement réalisée par l'intermédiaire de comités techniques ISO.. Each member group interested in a subject on which a technical committee has been established has the right to be represented on the committee. Organisations internationales, governments and non-governmental organizations that liaise with ISO are also involved in this work. L'ISO travaille en étroite collaboration avec la Commission électrotechnique internationale (CEI) sur toutes les questions de normalisation électrique.

ISO/IEC Directive Part 1 describes the procedures used to develop this document as well as those used for further maintenance. En particulier, attention should be paid to the different approval criteria required for different types of ISO files. Ce document a été rédigé conformément aux règles éditoriales de la Directive ISO/IEC Partie 2 (voir iso.org/directives).

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OIN 1461-2022 “Revêtements galvanisés à chaud sur produits en acier – Spécifications et méthodes de test”

Explications des normes pertinentes de volontariat, Termes spécifiques ISO liés à l'évaluation de la conformité et à l'expression de la signification, et l'ISO dans les barrières techniques au commerce (OTC) adhérer au principe de l'organisation mondiale du commerce (OMC) information, please refer to the iso.org/iso/foreword.html.

This document has been prepared by Technical Committee ISO/TC 107, Metallic and other inorganic Coatings, Sous-comité SC 4, Hot Dip Coatings (galvanization, etc.) in cooperation with Technical Committee CEN/TC 262 of the European Committee for Standardization (CEN) on metallic and other inorganic Coatings, According to the technical cooperation agreement between ISO and CEN (Accord de Vienne).

The fourth edition cancelates and replaces the third edition (OIN 1461:2009), qui a été techniquement révisé.

OIN 1461-2022 “Revêtements galvanisés à chaud sur produits en acier – Spécifications et méthodes de test”

Les principaux changements sont les suivants:

— Added definitions of “galvanizing”, “post-treatment”, “additional coating”, “wet storage stain” et “dual phase system” in Chapter 3;

-The difficulty of removing flux residues and zinc ash when restricted access is recognized in 6.1;

– The reference area selection procedure has been clarified and additional requirements have been added in 6.2.3 to avoid the use of reference areas on certain small auxiliary components on larger items;

— Modified refurbishment requirements for uncoated areas: removed the requirement for zinc-containing paint pigments to comply with ISO 3549; Annex C has been extended to include additional information on the applicability of the different refurbishment methods given in 6.3;

— All requirements related to coating thickness, including Tables 3 et 4, have been placed in 6.5, including requirements related to the dimensions of items previously in the control sample in 6.2.3; The new requirements for these steels in 6.5 recognize the lower coating thickness that results in ultra-low reactivity steels;

– Updated corrosion resistance information for galvanized coatings, including long-term corrosion resistance in reference to ISO 9224 in Appendix E.

OIN 1461-2022 “Revêtements galvanisés à chaud sur produits en acier – Spécifications et méthodes de test”

Any feedback or questions regarding this document should be referred to the user’s national standards body. A full list of these institutions can be found at iso.org/members.html.

1 Champ d'application
This document specifies the general properties of hot dip galvanized coatings and test methods for hot dip galvanized coatings applied by immersing steel products (including certain castings) in a zinc melt (containing no more than 2% of other metals). This document does not apply to:

un) continuous hot dip galvanized sheet, wire and braided or welded mesh products;

b) hot-dip galvanized pipes in automation equipment;

c) hot dip galvanized products (such as fasteners) for which specific standards exist and may include additional requirements or requirements different from those in this document.

Note: Individual product standards can be incorporated into this document by referring to the number of galvanized coatings, or they can be combined with product-specific modifications. Different requirements can also be made for galvanized coatings on products designed to meet specific regulatory requirements.

OIN 1461-2022 “Revêtements galvanisés à chaud sur produits en acier – Spécifications et méthodes de test”

This document does not apply to post-treatment or additional coating of hot dip galvanized products.

2 Documents normatifs de référence
Lorsque les documents suivants sont mentionnés dans le texte, part or all of them constitute the requirements of this document. Pour les références datées, the citation-only version applies. Pour les citations non datées, the new version of the cited document (y compris toutes les révisions) s'applique.

OIN 752, zinc ingot

OIN 1460, Metallic coatings — hot dip galvanized coatings on ferrous metallic materials — gravimetric determination of mass per unit area

OIN 2064, Revêtements métalliques et autres revêtements inorganiques – Definitions and conventions for thickness measurement

OIN 2178, non-magnetic coatings on magnetic substrates – Mesure de l'épaisseur du revêtement – méthode magnétique

OIN 2859-1, Sampling procedures for inspection by property – Partie 1: Sampling scheme for the acceptance quality limit (AQL) index for batch inspection

OIN 2859-2, Sampling procedures for testing by property – Partie 2: Sampling plans indexed by restricted quality (LQ) for testing of isolated batches

OIN 2859-3, sampling procedures for testing by property – Partie 3: Sampling procedures for skipping batches

OIN 10474, Steel and steel products – inspection documents

OIN 14713-2:2019, Zinc coatings — Guidelines and recommendations for corrosion protection of steel in structured-part 2: Galvanisation à chaud

DANS 1179, Zinc and zinc alloys — primary zinc

DANS 13283, Zinc and zinc alloys — Recycled zinc

OIN 1461-2022 “Revêtements galvanisés à chaud sur produits en acier – Spécifications et méthodes de test”

3 Termes et définitions
Aux fins de ce document, les termes et définitions donnés dans l'ISO 2064 and below apply.

ISO and IEC maintain terminology databases for standardization at:

– Plateforme de navigation en ligne ISO: iso.org/obp

– Électropédie CEI: disponible sur electropedia.org

3.1 Galvanisation à chaud

To form a galvanized coating of zinc or zinc-iron alloys or both on fabricated iron or steel products by immersion of a zinc melt (3.16)

3.2 Hot dip galvanized coating

Galvanized coating

The coating obtained by intermittent hot dip galvanizing (3.1)

3.3 Electroplating machine

Hot dip galvanized (3.1) batch steel products company or organization

3.4 Galvanized layer

Total mass of zinc or zinc alloy per surface area, ou les deux

Note 1: The quality of galvanized coating is expressed in grams per square meter, g/m 2.

3.5 Thickness of galvanized layer

Total thickness of zinc or zinc alloy, ou les deux

Remarque 1: The thickness is expressed in micrometer µm.

OIN 1461-2022 “Revêtements galvanisés à chaud sur produits en acier – Spécifications et méthodes de test”

3.6 Salient surface

A portion of an article that is or will be covered by a galvanized coating and that is required for the use of performance or appearance or both

3.7 Control samples

Select items or groups of items from the batch for sampling

3.8 Reference Area

An area where a specific number of single measurements are made

3.9 Thickness of local galvanized layer

The average galvanized coating thickness (3.5) is a single value from a magnetic test or a weight test obtained from a specific number of measurements within the reference area (3.8)

3.10 Average galvanized layer thickness

Average thickness of local galvanized coating (3.9)

3.11 Local galvanizing layer

Galvanized layer quality value obtained from a single weight test (3.4)

3.12 Average galvanized coating quality

Average galvanized coating quality (3.4) determined by using a control sample (3.7) or by conversion of the average galvanized coating thickness (3.10)

Note d'entrée 1: Control samples should be selected according to Chapter 5 using tests conforming to ISO 1460.

OIN 1461-2022 “Revêtements galvanisés à chaud sur produits en acier – Spécifications et méthodes de test”

3.13 Inspection batch

Single order or single delivery load

3.14 Acceptance

Inspection batch (3.13) at hot dip galvanizing (3.1) factory unless otherwise specified

3.15 Uncoated area

The area of a steel product that does not react with molten zinc

3.16 Zinc melt

A molten substance containing chiefly zinc

3.17 Weld leakage

Discharge the previously reserved pretreatment solution from a narrow space between two closely contacting surfaces of intermittent welding or from a very small cavity (pinhole) in the weld of a galvanized product

3.18 After treatment

Immediate application of chemical or other treatments that have a temporary effect, such as inhibiting wet storage stains (3.20) or enhancing the appearance of galvanized products

3.19 Additional coating

Application of galvanized post-coating as part of a duplex system (3.21), such as liquid coating or powder coating

OIN 1461-2022 “Revêtements galvanisés à chaud sur produits en acier – Spécifications et méthodes de test”

3.20 Wet storage of stains

Surface stains caused by the formation of zinc corrosion products, usually zinc hydroxide and zinc oxide, when newly galvanized steel is stored or transported under wet or damp conditions

3.21 Duplex systems

Hot dip galvanized coating (3.2) with additional liquid coating or powder coating

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