Results from Corrosion Tests in Artificial Atmosphere at Very Low Concentration of Polluting Gases and Proposal for Amendment to ISO 10062

概要

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The polluting gas corrosion tests with very low gas concentration are extensively used for estimating the corrosiveness of metals and metallic coatings in service, outdoor and indoor, under conditions of air pollution. However, the test condition of temperature and humidity, 25ºC and 75 %rh, specified in ISO 100621) is temperate, as it was recommended on the basis of the climate in Europe. Therefore it could not be appropriate as a test for the application of materials used under severe environments in subtropical countries as well as in Japan. Under such background we tried to carry out comparison tests between the conditions in ISO 10062 and in the Japanese proposal (40ºC and 80 %rh) based on the typical climate in Japan, for the revision of ISO 10062. From test results, it was found that the proposed condition gave satisfactory results as expected. It now should be specified in the revised ISO 10062.
一般社団法人表面技術協会の論文
2005-01-01