DIN EN ISO 9227:2017人工大氣中的腐蝕試驗.鹽霧試驗

DIN EN ISO 9227發行信息

標準號：DIN EN ISO 9227:2017

發行日期：03/01/2017

發行方：STANDARD by International Organization for Standardization

中文名：人工大氣中的腐蝕試驗.鹽霧試驗

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

取代標準：ISO 3768,ISO 7253

DIN EN ISO 9227:2017適用範圍

ISO 9227:2017規定了進行中性鹽霧（NSS）、乙酸鹽霧（AASS）和銅加速乙酸鹽霧（CASS）試驗的儀器、試劑和程序，以評估金屬材料的耐腐蝕性，包括或不包括永久或臨時腐蝕保護。

文中還介紹了評價試驗箱環境腐蝕性的方法。

它沒有規定試樣的尺寸或類型，特定產品的暴露時間，或結果的解釋。這些細節在適當的產品規範中提供。

鹽霧試驗特別適用於檢測某些金屬、有機、陽極氧化物和轉化膜中的不連續性，如孔隙和其他缺陷。

中性鹽霧（NSS）試驗特別適用於

-金屬及其合金，

-金屬塗層（陽極和陰極），

-轉化膜，-陽極氧化膜，以及

-金屬材料上的有機塗層。

醋酸鹽霧（AASS）試驗特別適用於銅+鎳+鉻或鎳+鉻裝飾塗層的試驗。它也被發現適用於測試鋁的陽極和有機塗層。

銅加速乙酸鹽霧（CASS）試驗可用於銅+鎳+鉻或鎳+鉻裝飾塗層的試驗。它也被發現適用於測試鋁的陽極和有機塗層。

鹽霧法都適用於檢查金屬材料的質量，無論是否有防腐蝕保護。它們不打算用於比較試驗，作為在耐腐蝕性方麵對不同材料相互進行排序的方法，或作為預測受試材料長期耐腐蝕性的方法。

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測試的方法

美國Q-LAB品牌Q-FOG係列的CRH型號循環腐蝕鹽霧箱，可以滿足DIN EN ISO 9227:2017人工大氣中的腐蝕試驗.鹽霧試驗的相關測試需求。