Een voorwoord
ISO (Internationale Organisatie voor Standaardisatie) is een mondiale federatie van nationale normalisatie-instellingen (ISO-lidorganisaties). De ontwikkeling van internationale normen wordt doorgaans uitgevoerd via technische ISO-commissies. Elke ledengroep die geïnteresseerd is in het onderwerp waarover een technische commissie is opgericht, heeft het recht om in de commissie vertegenwoordigd te zijn. Internationale organisaties, regeringen en ngo's die samenwerken met ISO zijn ook bij deze inspanning betrokken. ISO werkt nauw samen met de Internationale Elektrotechnische Commissie (IEC) over alle kwesties van elektrotechnische standaardisatie.

Deel 1 van de ISO/IEC-richtlijn beschrijft de procedures die zijn gebruikt om dit document te ontwikkelen, evenals de procedures die worden gebruikt voor verder onderhoud. In het bijzonder, Er moet aandacht worden besteed aan de verschillende goedkeuringscriteria die vereist zijn voor verschillende soorten ISO-documenten. Dit document is opgesteld in overeenstemming met de redactieregels van Deel 2 van de ISO/IEC-richtlijn (zie iso.org/directives).

Houd er rekening mee dat bepaalde elementen van dit document onderwerp kunnen zijn van octrooirechten. ISO is niet verantwoordelijk voor het identificeren van een of meer van dergelijke octrooirechten. Details of any patent rights identified during the development of the document will be in the profile and/or in the list of ISO patent claims received (zie iso.org/patents).

Any trade names used in this document are provided as information for the convenience of users and do not constitute an endorsement thereof.

Explanations of the relevant standards of voluntary, ISO specific terms related to conformity assessment and the expression of meaning, and the ISO in the technical barriers to trade (TBT) zich houden aan het principe van de Wereldhandelsorganisatie (WTO) informatie, please refer to the iso.org/iso/foreword.html.

ISO 1461-2022 “Thermisch verzinkte coatings op staalproducten – Specificaties en testmethoden”

This document has been prepared by Technical Committee ISO/TC 107, Metallic en andere anorganische coatings, Subcommissie SC 4, Hot-dipped Coatings (galvanizing etc.) in cooperation with Technical Committee CEN/TC 262 of the European Committee for Standardization (CEN), Metallic and other inorganic Coatings, According to the Technical cooperation agreement between ISO and CEN (Overeenkomst van Wenen).

The fourth edition eliminates and replaces the third edition (ISO 1461:2009), die technisch is herzien.

De belangrijkste wijzigingen zijn als volgt:

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

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

– The selection procedure for reference areas has been clarified, and additional requirements have been added in ISO 1461-2022 “Thermisch verzinkte coatings op staalproducten – Specificaties en testmethoden”

6.2.3 to avoid the use of reference areas on certain small auxiliary components on larger items;

– Modification of the retrofit requirements for uncoated areas: removal of the requirement for zinc-containing paint pigments to comply with ISO 3549; Annex C has been extended to include additional information regarding the suitability of the different renovation methods given in 6.3;

— All requirements related to coating thickness, including Tables 3 En 4, have been placed in 6.5, including requirements related to item size in control samples previously in 6.2.3; The lower coating thickness that results in ultra-low reactivity steels is recognized in the new requirements for these steel grades in 6.5;

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

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

ISO 1461-2022 “Thermisch verzinkte coatings op staalproducten – Specificaties en testmethoden”

1 Toepassingsgebied
This document specifies the general properties of hot dip galvanized coatings and test methods for hot dip galvanized coatings applied by immersing iron and steel products (including certain castings) in a zinc melt with no more than 2% other metal content. This document does not apply to:

A) 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 of this document.

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

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

ISO 1461-2022 “Thermisch verzinkte coatings op staalproducten – Specificaties en testmethoden”

2 Normatieve referentiedocumenten
Wanneer in de tekst naar de volgende documenten wordt verwezen, een deel of de gehele inhoud ervan vormt de vereisten van dit document. Voor gedateerde referenties, alleen de geciteerde versie is van toepassing. Voor ongedateerde citaten, de nieuwe versie van het citatiedocument (inclusief eventuele herzieningen) is van toepassing.

ISO 752, zinc ingots

ISO 1460, Metalen coatings — Hot dip galvanized coatings on ferrous metallic materials — Gravimetric determination of mass per unit area

ISO 2064, Metallische en andere anorganische coatings – Definitions and conventions for thickness measurement

ISO 2178, non-magnetic coatings on magnetic substrates – Meting van laagdikte – magnetic method

ISO 2859-1, Sampling procedures for inspection by attributes – Deel 1: Sampling scheme for acceptance quality limit (AQL) index by lot inspection

ISO 2859-2, Sampling procedures for inspection by attribute-Part 2: Sampling plans indexed by restricted quality (LQ) for isolation of batch inspection

ISO 1461-2022 “Thermisch verzinkte coatings op staalproducten – Specificaties en testmethoden”

ISO 2859-3, Sampling procedures for inspection by attributes — Deel 3: Sampling procedures for skip batches

ISO 10474, Steel and steel products-Inspection documentation

ISO 14713-2:2019, Zinc coatings — Guidelines and recommendations for corrosion protection of steel in structures — Deel 2: Thermisch verzinken

IN 1179, Zinc and zinc alloys — Primary zinc

IN 13283, Zinc and zinc alloys — Recycled zinc

3 termen en definities
Voor de doeleinden van dit document, de termen en definities gegeven in ISO 2064 en het volgende is van toepassing.

ISO en IEC onderhouden terminologiedatabases voor standaardisatie op de volgende adressen:

– ISO online browserplatform: iso.org/obp

– IEC Elektropedie: verkrijgbaar op electropedia.org

ISO 1461-2022 “Thermisch verzinkte coatings op staalproducten – Specificaties en testmethoden”

3.1 Thermisch verzinken

To form a galvanized coating of zinc or zinc-iron alloys or both on finished iron or steel products by immersion in 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

A company or organization dealing in hot dip galvanized (3.1) batch steel products

3.4 Galvanized coating

Total mass of zinc or zinc alloy per surface area, of allebei

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

3.5 Thickness of galvanized coating

The total thickness of zinc or zinc alloys, of allebei

Opmerking 1: The thickness is expressed in micrometers µm.

ISO 1461-2022 “Thermisch verzinkte coatings op staalproducten – Specificaties en testmethoden”

3.6 Salient aspect

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

3.7 Control samples

Items or groups of items were selected from batches for sampling

3.8 Reference Area

An area where a specific number of single measurements are taken

3.9 Thickness of local galvanized layer

The average of the galvanized coating thickness (3.5) is a single value of the magnetic test or 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 layer (3.9)

ISO 1461-2022 “Thermisch verzinkte coatings op staalproducten – Specificaties en testmethoden”

3.11 Local galvanizing layer

Quality value of galvanized coating obtained from a single weight test (3.4)

3.12 Average galvanized coating quality

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

Invoernotitie 1: Control samples should be selected using ISO 1460 compliant tests in accordance with Chapter 5.

3.13 Inspection batch

Single order or single delivery load

3.14 Acceptance

Inspection lot (3.13) at hot Dip galvanizing (3.1) plant unless otherwise specified

3.15 Uncoated area

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

3.16 Zinc melt

A molten substance containing mainly zinc

ISO 1461-2022 “Thermisch verzinkte coatings op staalproducten – Specificaties en testmethoden”

3.17 Weld leakage

Discharge of a previously retained pretreatment solution from a narrow space between two closely contacting surfaces of a batch weld 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 a galvanized post-coating as part of a dual-phase system (3.21), bijv. liquid coating or powder coating

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 humid or wet conditions

3.21 Duplex system

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

Alleen de standaardinformatiecomponent is openbaar beschikbaar. Om de volledige inhoud te zien, u zult de normen via formele kanalen moeten aanschaffen.