The temperature of the archives can be adjusted by air conditioning, and the humidity can be adjusted by humidifier and desiccant, which is easy to master. Generally speaking, the space of office archives is not large, and the adjustment of temperature and humidity is mainly through ventilation.
The purpose of ventilation is to exchange indoor and outdoor air in a planned way according to the law of air flow, so as to achieve the purpose of adjusting indoor temperature and humidity.
Ventilation principle: Before ventilation, all or one of the outdoor temperature or humidity must be lower than indoor. When the outdoor temperature and relative humidity are lower than indoor, it can be ventilated; On the other hand, it cannot be ventilated. When the outdoor temperature is lower than the indoor temperature and the indoor and outdoor relative humidity is the same, ventilation can be carried out; On the other hand, it cannot be ventilated. Outdoor relative humidity is less than indoor, but when the indoor and outdoor temperatures are the same, it can be ventilated; On the other hand, it cannot be ventilated.
Outdoor temperature is lower than indoor, outdoor relative humidity is higher than indoor, or outdoor temperature is higher than indoor, and outdoor relative humidity is lower than indoor. At this time, it is necessary to calculate and compare the absolute humidity inside and outside with formulas. If the outdoor absolute humidity is less than indoor, it can be ventilated. On the other hand, it cannot be ventilated.
The significance of file preservation
The quality of file keeping has a great influence on improving the level of file management. Archival custody is one of the organic components of the whole archival work, which is closely related to other links, and cannot exist and develop independently without other links. The preservation of archives is not only for preservation, but its ultimate goal is to ensure the utilization of archives in the work of the party and the state. The convenience of saving and providing archives is basically the same. The requirements of temperature and humidity are very strict in the process of file management.
To solve the sharp contradiction between the requirement of safe custody and the possible damage of files. The reasons for the destruction of archives are not social or natural reasons, nor are they human and natural factors. The task of archives preservation is to understand the law of archives damage, take special technical measures through regular work, prevent and reduce the damage of archives to the maximum extent, prolong the life of archives, maintain the systematicness and integrity of archives, and ensure the political security of archives.