產(chǎn)品列表PRODUCTS LIST
本頁面標(biāo)準(zhǔn)信息均來源于網(wǎng)絡(luò)收集,或由參與標(biāo)準(zhǔn)制定的供應(yīng)商提供,只作為參考使用,為確保測(cè)試結(jié)果的準(zhǔn)確性、節(jié)省您的時(shí)間,如需Volvo VCS 1027,1449標(biāo)準(zhǔn)詳細(xì)信息或Volvo VCS 1027,1449具體測(cè)試方法,請(qǐng)與我們技術(shù)人員聯(lián)系或給我們留言,我們將為您提供相關(guān)的技術(shù)支持。
This test procedure serves as a general purpose atmospheric corrosion test and can be applied to a wide variety of materials, coatings and interactions of materials. It has been developed to allow the evaluation of the corrosion resistance of metals in environments where there is a significant influence of chloride ions, mainly as sodium chloride from a marine source or by winter road de-icing salt. This test is cyclic in nature, i.e.; test specimens are exposed to changing climates over time.
Test specimens are placed in an enclosed chamber and exposed to a changing climate. The first 5 days comprise of the following 3 part repeating cycle. 6.0 hours exposure to a ‘wet’ climate of no less than 95% RH, at +25°C, with intermittent exposure to salt solution. This is followed by 2.5 hours climate controlled transition to 50°C & 70% RH. This is followed by 15.5 hours exposure to a constant climate of 50°C & 70% RH. The final 2 days comprise of 48.0 hours exposure to a constant climate of 50°C & 70% RH. This completes the total 7 day test cycle. The number of cycle repeats and therefore the test duration is variable.
This test is also referred to as a Cyclic Corrosion Test, often abbreviated to CCT.