ISO 3210:2017 铝及铝合金阳极氧化 磷酸/铬酸浸蚀后按质量损失评定阳极氧化膜的封孔质量

标准编号：ISO 3210:2017

中文名称：铝及铝合金阳极氧化 磷酸/铬酸浸蚀后按质量损失评定阳极氧化膜的封孔质量

英文名称：Anodizing of aluminium and its alloys — Assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in acid solution(s)

发布日期：2017-10

标准范围

ISO 3210:2017规定了通过测量浸入酸溶液后的质量损失来评估铝及其合金上密封阳极氧化涂层质量的方法。它包括以下两种方法。-方法1:在未经酸处理的情况下，通过测量浸入磷酸基溶液后的质量损失，评估密封阳极氧化涂层的质量。-方法2:通过测量在酸处理前浸入磷酸基溶液后的质量损失，评估密封阳极氧化涂层的质量。方法1适用于用于装饰或保护目的的阳极氧化涂层，或耐沾污性很重要的阳极氧化涂层。方法2适用于户外建筑用阳极氧化涂层。对于不太严重的应用，方法1可能更适合。这些方法不适用于以下情况:-通常不密封的硬质阳极氧化涂层；-仅在重铬酸盐溶液中密封的阳极氧化涂层；-铬酸溶液中产生的阳极氧化涂层；-经过处理使其疏水的阳极氧化涂层。注1:这些方法评估了阳极氧化铝的水热密封质量。它们可以适用于其他密封方法。注2:这些方法具有破坏性，如果对吸收能力损失（见ISO 2143）或导纳测量（见ISO 2931）的测试结果存在疑问或争议，可作为参考方法。

ISO 3210:2017 specifies methods of assessing the quality of sealed anodic oxidation coatings on aluminium and its alloys by measurement of the loss of mass after immersion in acid solution(s).It consists of the following two methods.- Method 1: Assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in a phosphoric acid based solution without prior acid treatment.- Method 2: Assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in a phosphoric acid based solution with prior acid treatment.Method 1 is applicable to anodic oxidation coatings intended for decorative or protective purposes or where resistance to staining is important.Method 2 is applicable to anodic oxidation coatings intended for outdoor architectural purposes. For less severe applications, Method 1 can be more suitable.The methods are not applicable to the following:- hard-type anodic oxidation coatings which normally are not sealed;- anodic oxidation coatings that have been sealed only in dichromate solutions;- anodic oxidation coatings produced in chromic acid solutions;- anodic oxidation coatings that have undergone treatment to render them hydrophobic.NOTE 1 The methods assess the quality of hydrothermal sealing applied to anodized aluminium. They can be appropriate for other sealing methods.NOTE 2 The methods are destructive and can serve as reference methods in case of doubt or dispute regarding the results of the test for loss of absorptive power (see ISO 2143) or the measurement of admittance (see ISO 2931).

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