国际标准化组织 1461-2022 “Hot dip galvanized coatings on steel products – 规格及测试方法”
介绍
国际标准化组织 (国际标准化组织) is a global federation of national standards bodies (ISO成员机构). 国际标准的制定通常通过ISO技术委员会进行. Each member group interested in a subject on which a technical committee has been established has the right to be represented on the committee. International organizations, governments and non-governmental organizations that liaise with ISO are also involved in this work. ISO 与国际电工委员会密切合作 (国际电工委员会) 关于电气标准化的所有问题.
ISO/IEC Directive Part 1 describes the procedures used to develop this document as well as those used for further maintenance. 尤其, 应注意不同类型的ISO文件所需的不同批准标准. 该文档已根据ISO/IEC指令部分的编辑规则起草 2 (请参阅 iso.org/directives).
Please note that some elements of this document may be the subject of patent rights. ISO 不负责识别任何或所有此类专利权. 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 declarations received (参见 iso.org/patents).
Any trade names used in this document are provided as information for the convenience of the user and do not constitute an endorsement thereof.
国际标准化组织 1461-2022 “Hot dip galvanized coatings on steel products – 规格及测试方法”
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 (技术性贸易壁垒) 坚持世界贸易组织原则 (世贸组织) 信息, 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, Sub-Committee 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 (Vienna Agreement).
The fourth edition cancelates and replaces the third edition (国际标准化组织 1461:2009), 已进行技术修订.
国际标准化组织 1461-2022 “Hot dip galvanized coatings on steel products – 规格及测试方法”
The main changes are as follows:
— Added definitions of “galvanizing”, “post-treatment”, “additional coating”, “wet storage stain” 和 “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 和 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.
国际标准化组织 1461-2022 “Hot dip galvanized coatings on steel products – 规格及测试方法”
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 适用范围
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:
A) continuous hot dip galvanized sheet, wire and braided or welded mesh products;
乙) 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.
笔记: 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.
国际标准化组织 1461-2022 “Hot dip galvanized coatings on steel products – 规格及测试方法”
This document does not apply to post-treatment or additional coating of hot dip galvanized products.
2 Normative reference documents
When the following documents are referred to in the text, part or all of them constitute the requirements of this document. 对于注明日期的参考文献, 仅引用版本适用. For undated citations, the new version of the cited document (包括任何修订) 适用.
国际标准化组织 752, zinc ingot
国际标准化组织 1460, Metallic coatings — hot dip galvanized coatings on ferrous metallic materials — gravimetric determination of mass per unit area
国际标准化组织 2064, Metallic and other inorganic coatings – Definitions and conventions for thickness measurement
国际标准化组织 2178, non-magnetic coatings on magnetic substrates – Measurement of coating thickness – magnetic method
国际标准化组织 2859-1, Sampling procedures for inspection by property – 部分 1: Sampling scheme for the acceptance quality limit (AQL) index for batch inspection
国际标准化组织 2859-2, Sampling procedures for testing by property – 部分 2: Sampling plans indexed by restricted quality (LQ) for testing of isolated batches
国际标准化组织 2859-3, sampling procedures for testing by property – 部分 3: Sampling procedures for skipping batches
国际标准化组织 10474, Steel and steel products – inspection documents
国际标准化组织 14713-2:2019, Zinc coatings — Guidelines and recommendations for corrosion protection of steel in structured-part 2: Hot dip galvanizing
在 1179, Zinc and zinc alloys — primary zinc
在 13283, Zinc and zinc alloys — Recycled zinc
国际标准化组织 1461-2022 “Hot dip galvanized coatings on steel products – 规格及测试方法”
3 术语和定义
就本文件而言, ISO 中给出的术语和定义 2064 和以下适用.
ISO和IEC维护术语数据库以进行标准化:
– ISO online browsing platform: iso.org/obp
– IEC Electropedia: available at electropedia.org
3.1 Hot dip galvanizing
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, 或两者兼而有之
笔记 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, 或两者兼而有之
评论 1: The thickness is expressed in micrometer µm.
国际标准化组织 1461-2022 “Hot dip galvanized coatings on steel products – 规格及测试方法”
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)
Entry Note 1: Control samples should be selected according to Chapter 5 using tests conforming to ISO 1460.
国际标准化组织 1461-2022 “Hot dip galvanized coatings on steel products – 规格及测试方法”
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
国际标准化组织 1461-2022 “Hot dip galvanized coatings on steel products – 规格及测试方法”
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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