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本文叙述了为制定适合航天产品上使用的非金属材料及电子元器件的霉菌试验标准而进行的霉菌试验方法的研究。首先,将366件产品上使用的主要非金属材料及电子元器件送往安徽、湖南、昆明、东北、青岛五个地区进行了为期两年的贮存。先后共采集了菌株2716株,从其中分离、筛选出菌种共34种。最后经过分析研究选出其中的八个菌种傲为试验用菌种。在确定菌种的基础上进行了非金属材料及电子元器件霉菌加速试验方法的研究,为制订霉菌试验标准提供了依据。根据航天产品的使用特点,把生霉等级定为五级标准,并提出了评定等级的办法,国外有关标准规定在放大50倍下观察来评定生霉等级。这在实际工作中难以实施;而国内的有关标准中只规定用肉眼观察,误差较大,本试验方法中规定在放大4倍下观察,它既实用又保证了等级评定的质量。本文附有详细的图表和实物照片。
This article describes the study of mold testing methods for the development of mold testing standards for non-metallic materials and electronic components used in aerospace products. First of all, the major non-metallic materials and electronic components used on 366 products were sent to five areas in Anhui, Hunan, Kunming, Northeast China and Qingdao for two-year storage. Has collected a total of 2716 strains, isolated from them, screened a total of 34 kinds of bacteria. Finally, after the analysis and selection of which eight strains of proud test strains. On the basis of determining the strain, the research on mold accelerating test of non-metallic materials and electronic components was carried out, which provided the basis for the development of mold test standard. According to the characteristics of the use of aerospace products, the level of mold as a five-level standard, and put forward the assessment of the level of approach, the relevant provisions of foreign standards at 50 times magnification to observe the assessment of mold level. This is difficult to implement in practical work; while the domestic standard only provides with the naked eye observation, the error is large, the test method provides for observation under 4 times magnification, it is both practical and to ensure the quality of the grade rating. This article is accompanied by detailed charts and physical photos.