DIN EN ISO 9227:2017人工大氣中的腐蝕試驗(yàn).鹽霧試驗(yàn)
DIN EN ISO 9227發(fā)行信息
標(biāo)準(zhǔn)號(hào)：DIN EN ISO 9227:2017
發(fā)行日期：03/01/2017
發(fā)行方：STANDARD by International Organization for Standardization
中文名：人工大氣中的腐蝕試驗(yàn).鹽霧試驗(yàn)
英文名：Corrosion tests in artificial atmospheres - Salt spray tests
取代標(biāo)準(zhǔn)：ISO 3768,ISO 7253
DIN EN ISO 9227:2017適用范圍
ISO 9227:2017規(guī)定了進(jìn)行中性鹽霧（NSS）、乙酸鹽霧（AASS）和銅加速乙酸鹽霧（CASS）試驗(yàn)的儀器、試劑和程序，以評(píng)估金屬材料的耐腐蝕性，包括或不包括永久或臨時(shí)腐蝕保護(hù)。
文中還介紹了評(píng)價(jià)試驗(yàn)箱環(huán)境腐蝕性的方法。
它沒有規(guī)定試樣的尺寸或類型，特定產(chǎn)品的暴露時(shí)間，或結(jié)果的解釋。這些細(xì)節(jié)在適當(dāng)?shù)漠a(chǎn)品規(guī)范中提供。
鹽霧試驗(yàn)特別適用于檢測某些金屬、有機(jī)、陽極氧化物和轉(zhuǎn)化膜中的不連續(xù)性，如孔隙和其他缺陷。
中性鹽霧（NSS）試驗(yàn)特別適用于
-金屬及其合金，
-金屬涂層（陽極和陰極），
-轉(zhuǎn)化膜，-陽極氧化膜，以及
-金屬材料上的有機(jī)涂層。
醋酸鹽霧（AASS）試驗(yàn)特別適用于銅+鎳+鉻或鎳+鉻裝飾涂層的試驗(yàn)。它也被發(fā)現(xiàn)適用于測試鋁的陽極和有機(jī)涂層。
銅加速乙酸鹽霧（CASS）試驗(yàn)可用于銅+鎳+鉻或鎳+鉻裝飾涂層的試驗(yàn)。它也被發(fā)現(xiàn)適用于測試鋁的陽極和有機(jī)涂層。
鹽霧法都適用于檢查金屬材料的質(zhì)量，無論是否有防腐蝕保護(hù)。它們不打算用于比較試驗(yàn)，作為在耐腐蝕性方面對(duì)不同材料相互進(jìn)行排序的方法，或作為預(yù)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
品牌系列的CRH型號(hào)循環(huán)腐蝕鹽霧箱，可以滿足DIN EN ISO 9227:2017人工大氣中的腐蝕試驗(yàn).鹽霧試驗(yàn)的相關(guān)測試需求。
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