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盐雾试验箱标准测试溶液

作者:匿名    访问量:1949    发布时间:2013/8/27

用来配置盐雾试验箱测试溶液的水必须按照标准中所规定的蒸馏水或者去离子水.在23±2℃的温度下,水的导电率不能超过2MS/M.用来制作测试溶液的氯化纳不能喊有超过0.3%的添加剂,碘化钠不超过0.1%,总的铜和镍的含量不超过0.001%.对于氯化钠而言,如果按照其它试验方法,此要求可以达到,如果不是,则需要过滤配置好的溶液.

    盐雾试验箱最常规的测试方法为中性盐雾试验、酸性盐雾试验,它的测试溶液有一定的区别:

    SS测试的测试溶液:在23±2℃的条件下,氯化钠溶液的PH值需要调配到6.5-7.2, 酸和碱都可以用来调试溶液的PH值.PH值需要在23±2℃的条件下,用玻璃电极,用电解的方法测定.测试溶液浓度为50±5每升。

    ASS测试的测试溶液:氯化钠溶液的PH值需要使用乙酸溶液进行调配,确保符合标准,并且所有进行喷雾和收集到的溶液有3.1到3.3的PH值,温度为23±2℃,要求每升有1到3克的乙酸. PH值需要在23±2℃的条件下,用玻璃电极,用电解的方法测定.测试溶液浓度为50±5每升。

    3CASS测试的测试溶液:首先,每升要添加0.26±0.2克的2水氯化铜,其它要求按标准制定执行。 (图/文www.wxjinke.com)

To configure the salt fog test box testing solution of water must be in accordance with the provisions of the standard of distilled water or deionized water. At 23 ± 2 ℃, the electrical conductivity of water is not more than 2MS/M. used to make test solution of sodium chloride can't shout with additive exceeds 0.3%, the Nai of not more than 0.1%, the total content of nickel and copper of no more than 0.001%. for sodium chloride, if in accordance with other test methods, this requirement can be achieved, if not, is in need of solution filter configured.
Test method for the salt fog test box for the neutral salt spray test, acidic salt spray test, the test solution which has certain difference:
SS test: test solution at 23 ± 2 ℃, sodium chloride solution pH value needs to allocate to 6.5-7.2, acid and alkali, can be used to debug the pH of the solution.PH value at 23 ± 2 ℃, with the glass electrode, measured by electrolytic method. The test solution concentration was 50 ± 5 per liter.
ASS test: test solution of sodium chloride solution pH to the deployment and use of acetic acid solution, ensure compliance with the standards, and all the spray and the collected solution is 3.1 to 3.3 pH, temperature 23 ± 2 ℃, requirements per liter of acetic acid 1 to 3 grams. The pH to 23 ± 2 ℃ conditions, with the glass electrode, measured by electrolytic method. The test solution concentration was 50 ± 5 per liter.
The test solution 3CASS test: first, 2 water and copper chloride per liter to add 0.26 ± 0.2 grams, other requirements according to the standard formulation and execution.

 

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