DIN EN ISO 9227:2017人工大气中的腐蚀试验.盐雾试验

DIN EN ISO 9227发行信息

标准号：DIN EN ISO 9227:2017

发行日期：03/01/2017

发行方：STANDARD by International Organization for Standardization

中文名：人工大气中的腐蚀试验.盐雾试验

英文名：Corrosion tests in artificial atmospheres - Salt spray tests

取代标准：ISO 3768,ISO 7253

DIN EN ISO 9227:2017适用范围

ISO 9227:2017规定了进行中性盐雾（NSS）、乙酸盐雾（AASS）和铜加速乙酸盐雾（CASS）试验的仪器、试剂和程序，以评估金属材料的耐腐蚀性，包括或不包括永久或临时腐蚀保护。

文中还介绍了评价试验箱环境腐蚀性的方法。

它没有规定试样的尺寸或类型，特定产品的暴露时间，或结果的解释。这些细节在适当的产品规范中提供。

盐雾试验特别适用于检测某些金属、有机、阳极氧化物和转化膜中的不连续性，如孔隙和其他缺陷。

中性盐雾（NSS）试验特别适用于

-金属及其合金，

-金属涂层（阳极和阴极），

-转化膜，-阳极氧化膜，以及

-金属材料上的有机涂层。

醋酸盐雾（AASS）试验特别适用于铜+镍+铬或镍+铬装饰涂层的试验。它也被发现适用于测试铝的阳极和有机涂层。

铜加速乙酸盐雾（CASS）试验可用于铜+镍+铬或镍+铬装饰涂层的试验。它也被发现适用于测试铝的阳极和有机涂层。

盐雾法都适用于检查金属材料的质量，无论是否有防腐蚀保护。它们不打算用于比较试验，作为在耐腐蚀性方面对不同材料相互进行排序的方法，或作为预测受试材料长期耐腐蚀性的方法。

ISO 9227:2017 specifies the apparatus, the reagents and the procedure to be used in conducting the neutral salt spray (NSS), acetic acid salt spray (AASS) and copper-accelerated acetic acid salt spray (CASS) tests for assessment of the corrosion resistance of metallic materials, with or without permanent or temporary corrosion protection.

It also describes the method employed to evaluate the corrosivity of the test cabinet environment.

It does not specify the dimensions or types of test specimens, the exposure period to be used for a particular product, or the interpretation of results. Such details are provided in the appropriate product specifications.

The salt spray tests are particularly useful for detecting discontinuities, such as pores and other defects, in certain metallic, organic, anodic oxide and conversion coatings.

The neutral salt spray (NSS) test particularly applies to

- metals and their alloys,

- metallic coatings (anodic and cathodic),

- conversion coatings,

- anodic oxide coatings, and

- organic coatings on metallic materials.

The acetic acid salt spray (AASS) test is especially useful for testing decorative coatings of copper + nickel + chromium, or nickel + chromium. It has also been found suitable for testing anodic and organic coatings on aluminium.

The copper-accelerated acetic acid salt spray (CASS) test is useful for testing decorative coatings of copper + nickel + chromium, or nickel + chromium. It has also been found suitable for testing anodic and organic coatings on aluminium.

The salt spray methods are all suitable for checking that the quality of a metallic material, with or without corrosion protection, is maintained. They are not intended to be used for comparative testing as a means of ranking different materials relative to each other with respect to corrosion resistance or as means of predicting long-term corrosion resistance of the tested material.

ISO 9227-2017中AASS测试的方法

美国Q-LAB品牌Q-FOG系列的CRH型号循环腐蚀盐雾箱，可以满足DIN EN ISO 9227:2017人工大气中的腐蚀试验.盐雾试验的相关测试需求。

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