国产精品视频一区二区三区四,亚洲av美洲av综合av,99国内精品久久久久久久,欧美电影一区二区三区电影

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，為確保測試結(jié)果的準(zhǔn)確性、節(jié)省您的時(shí)間，如需Volvo VCS-1027, 149標(biāo)準(zhǔn)詳細(xì)信息或Volvo VCS-1027, 149具體測試方法，歡迎與我們技術(shù)人員聯(lián)系或給我們留言，我們將為您相關(guān)的技術(shù)支持。

Volvo VCS-1027, 149標(biāo)準(zhǔn)介紹

Volvo VCS-1027, 149英文簡介

This standard defines an accelerated corrosion test method to be used in assessing 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. It specifies a test procedure to be used in conducting the accelerated corrosion test to simulate atmospheric corrosion conditions in a controlled way.

The one-week main test cycle is composed of two twelve-hour sub-cycles, one with controlled humidity cycling; sub-cycle 1, the other including salt solution application, sub-cycle 2.

Sub cycle 1 requires constant conditions at 35°C & 95% RH for 4 h, followed by an increase of temperature to 45°C whilst reducing the humidity to 50% over a 2 hour period. This is followed by constant conditions of 45°C & 50% RH for 4 h, together with a 2 hour period of 35°C & 95%RH. Step 1:4) Temperature decrease from 45°C to 35°C.

Sub cycle 2 requires spraying with salt solution for 15 mins then keeping the samples at 35°C for 1 h 45 min whilst maintaining a set point of 95% - 99% RH in such a way that the test objects remain wet. These steps are repeated in sequence to give a total period of 6 hours. Drying at 45°C & 50% RH for a 2 hour period followed by a further 2 hour period of 35°C whilst maintaining 95% RH.

This test is also referred to as a Cyclic Corrosion Test, often abbreviated to CCT.

Q-fog鹽霧試驗(yàn)箱用于Volvo VCS-1027, 149 鹽霧測試的流程

▼Volvo VCS-1027, 149第三方檢測機(jī)構(gòu)

以上標(biāo)準(zhǔn)信息來自互聯(lián)網(wǎng)搜索整理，如需了解完整的Volvo VCS-1027, 149的信息或Volvo VCS-1027, 149標(biāo)準(zhǔn)解讀，歡迎詳詢。