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江南地区,乃至广大的南方诸省,多高温高湿天气。这就容易使人产生误解,以为只要解决了档案库房的降温降湿,便可确保档案无恙。但事实上,自然界并非铁板一块,每逢冬季,即使江南,阴冷干燥的气候也会使档案库房的相对湿度偏走低值。宝贵的档案材料长年处于如此游走不定的环境中,难免加速老化、发硬变脆。尤其是近年来空调器的运用越来越广泛,随着漾漾的暖意横空出世,库房中原本就显金贵的丝丝潮气益发魂不守舍,纷纷逐热流而去。上海市档案馆技术部曾做过测试,每逢冬季,库房相对湿度的下降随供暖时间的延续,最低可达35％,明显低于安全指标。
Southern region, and even the vast southern provinces, more high temperature and humidity. This is easy to make people misunderstood that as long as the archives to solve the cooling of the warehouse, you can ensure that the file intact. But in fact, nature is not a piece of iron. Every winter, even in the south, the cold and dry climate will make the relative humidity of the archives room deviate from the low value. Valuable files for so many years in such a volatile environment, it is inevitable to accelerate aging, hair brittle brittle. Especially in recent years, more and more use of air conditioners, with the warmth of Yang Yang turned out to be the treasury of the original treasures of the tremendous interest in the unscrupulous, one by one heat away. Shanghai Archives Technology Department has done tests, every winter, the decline in the relative humidity of the warehouse with the continuation of the heating time, the lowest up to 35%, significantly lower than the safety indicators.