介绍
ISO标准 (国际标准化组织) 是国家标准机构的全球联盟 (ISO 成员机构). 国际标准的制定通常通过ISO技术委员会进行. 每个对已设立技术委员会的主题感兴趣的成员机构都有权派代表参加该委员会. 与 ISO 联络的国际政府和非政府组织也参与了这项工作. ISO 与国际电工委员会密切合作 (恒温恒湿试验箱) 关于电气标准化的所有问题.
用于开发本文档的程序和用于进一步维护的程序在第 1 ISO/IEC 指令. 尤其, 应注意不同类型ISO文件所需的不同批准标准. 本文件根据 ISO/IEC 指令部分的编辑规则起草 2 (参见 iso.org/directives).
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ISO标准 18768-2-2022 – Organic Coatings on aluminium and its alloys – Specification of methods for decorative and protective organic coatings on aluminium – 部分 2: Liquid coatings
自主性, 相关标准和合格评定相关 ISO 特定和表达术语的含义以及相关 ISO 技术贸易壁垒 (贸易壁垒) 坚持世界贸易组织的原则 (世贸组织) 信息, 请参考 iso.org/iso/foreword.html.
本文件由 ISO/TC 技术委员会编写 79, Light Metals and their Alloys, SC小组委员会 2, Organic and anodized Coatings on Aluminium.
ISO 中所有部分的列表 18768 系列可以在 ISO 网站上找到.
有关本文件的任何反馈或问题应直接提交给用户的国家标准机构. 这些机构的完整列表可以在 iso.org/members.html 上找到.
介绍
There are three main surface treatments for aluminum and its alloys:
一个) anodized coating;
b) Organic coatings;
C) A combination of anodized coating and organic coating.
ISO标准 18768-1 and this document provide b) performance requirements and test methods for organic coatings.
一个) Performance requirements and test methods for anodized coatings are given in ISO 7599, and c) combined anodized coatings and organic coatings are given in ISO 28340.
It is assumed that users are familiar with other relevant international and regional standards. These standards should be respected, and this document uses an optional system in this context.
ISO标准 18768-2-2022 – Organic Coatings on aluminium and its alloys – Specification of methods for decorative and protective organic coatings on aluminium – 部分 2: Liquid coatings
1 范围
This document specifies methods for specifying decorative and protective organic coatings on aluminum and its alloys. It defines the characteristic properties of organic liquid coatings and provides a test method with minimum performance requirements, with reference to the application and erosion of the environment in which the painted aluminum is applied.
This document applies to aluminum products with liquid coatings for general use, as well as liquid coatings processed primarily by electrostatic liquid spraying, air spraying or airless spraying.
This document does not apply to aluminum coil coatings.
2 规范性引用
以下文件以文本方式引用，构成本文件的部分或全部要求. 对于过时的参考, 仅引用的版本适用. 对于未注明日期的参考资料, 新版本的参考 (包括任何修订) 适用.
ISO标准 1463, Metal and oxide coatings – 涂层厚度测量 – microscopy methods
ISO标准 1519, 油漆和清漆 – 弯曲试验 (cylindrical mandrel)
ISO标准 1520, 油漆和清漆 – cupping test
ISO标准 2106, Anodizing of aluminium and its alloys – Determination of mass per unit area (surface density) of anodized coatings – Gravimetric method
ISO标准 18768-2-2022 – Organic Coatings on aluminium and its alloys – Specification of methods for decorative and protective organic coatings on aluminium – 部分 2: Liquid coatings
ISO标准 2360, Non-conductive coatings on non-magnetic conductive base metals – 涂层厚度测量 – amplitude sensitive eddy current method
ISO标准 2409, 油漆和清漆 – Crosscutting testing
ISO标准 2812-2 油漆和清漆 – Determination of resistance to liquids – 部分 2: Water immersion method
ISO标准 2813, 油漆和清漆 – Determination of gloss values at 20°, 60° and 85°
ISO标准 3892, Conversion coatings on metallic materials – Determination of coating mass per unit area – Gravimetric method
ISO标准 4211-2, Furniture – Surface finish testing – 部分 2: Assessment of resistance to moisture and heat
ISO标准 4211-3, Furniture – Surface finish testing – 部分 3: Assessment of resistance to dry heat
ISO标准 4623-2, 油漆和清漆 – 丝状腐蚀的测定 – 部分 2: 铝基板
ISO标准 4624, 油漆和清漆 – adhesion pull-out test
ISO标准 4628-2, 油漆和清漆 – 涂层降解评估 – designation of number and size of defects, and intensity of uniform changes in appearance – 部分 2: Assessment of degree of foaming
ISO标准 18768-2-2022 – Organic Coatings on aluminium and its alloys – Specification of methods for decorative and protective organic coatings on aluminium – 部分 2: Liquid coatings
ISO标准 4628-10, 油漆和清漆 – 涂层降解评估 – designation of number and size of defects, and intensity of uniform changes in appearance – 部分 10: Assessment of degree of filamentous corrosion
ISO标准 6270-1, 油漆和清漆 – Determination of moisture resistance – 部分 1: Condensation (single side exposure)
ISO标准 6270-2, 油漆和清漆 – Determination of moisture resistance – 部分 2: Condensation (exposure in cabinets with hot water tanks)
ISO标准 6270-3, 油漆和清漆 – Determination of moisture resistance – 部分 3: Condensation (exposure in cabinets with heated, bubbling tanks)
ISO标准 6272-2, 油漆和清漆 – 快速变形 (抗冲击性) tests – 部分 2: drop weight test, small area indenter
ISO标准 7784-1 油漆和清漆 – Determination of wear resistance – 部分 1: Method of covering wheels and rotating specimens with sandpaper
ISO标准 7784-2, 油漆和清漆 – Determination of wear resistance – 部分 2: Method of using abrasive rubber wheels and rotating specimens
ISO标准 8295, R.C.A 纸张磨损测试仪 – Films and sheets – Determination of coefficient of friction
ISO标准 8296, R.C.A 纸张磨损测试仪 – Films and sheets – Determination of wetting tension
ISO标准 18768-2-2022 – Organic Coatings on aluminium and its alloys – Specification of methods for decorative and protective organic coatings on aluminium – 部分 2: Liquid coatings
ISO标准 9227, corrosion testing in artificial atmospheres – salt spray testing
ISO标准 15184, 油漆和清漆 – Determination of film hardness by pencil test
ISO标准 17132-2007, 油漆和清漆. T-bend test
ISO标准 16474-2, 油漆和清漆 – 暴露于实验室光源的方法 – 部分 2: xenon arc lamps
ISO标准 21227-2, 油漆和清漆 – Evaluation of defects on coated surfaces using optical imaging – 部分 2: Evaluation procedure for multiple impact lithotriptic testing
ISO标准 28340:2013, Composite coatings on aluminium – General specification for combined coatings of electrophoretic organic coatings and anodized coatings on aluminium
ASTM C207, Standard specification for hydrated lime for Masonry
ASTM D968, Standard Test method for Wear Resistance of Organic Coatings through Dropped abrasives
ASTM D7869, Standard Practice for Xenon Arc Exposure Testing of Transportation Coatings, Enhanced Light and water exposure
QUALICOAT Specification 2022, Quality labeling specification for liquid and powder organic coatings on aluminum for construction applications
GSB QR AL 631-7 ST 663-7, Methods of Measurement and testing
ISO标准 18768-2-2022 – Organic Coatings on aluminium and its alloys – Specification of methods for decorative and protective organic coatings on aluminium – 部分 2: Liquid coatings
3 术语和定义
就本文件而言, 以下术语和定义适用.
3.1 Liquid Coating
A dry coating of a certain thickness that has decorative and protective effects on the product, the coating is formed by liquid paint and does not include coatings formed by anodizing, combination coating or powder coating
3.2 Reference Examples
Reference specimen
Define a sample of acceptable attribute criteria
笔记 1: This can be agreed between the customer and the surface treatment provider
3.3 重要表面
The part of the article covered or to be covered by the coating, and the coating is of no further importance to the service and/or appearance
3.4 样本
A single sample of the final product for testing
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