Archives warehouse is a place where units or companies keep archives and other temporarily unusable material equipment for a long time. In order to protect the archives and all kinds of equipment, prolong their life, and avoid the damage of dust, sunlight and other factors, I have compiled the relevant contents about whether there are environmental protection requirements for paper archives storage, hoping to help you!
Are there any environmental requirements for storing paper documents?
There are requirements. Because paper easily affects temperature, humidity, dust and light.
Differences in environmental conditions between electronic documents and paper documents.
1, temperature and humidity difference. Improper temperature and humidity have effects on magnetic carriers, optical disks and paper. For paper, high temperature and high humidity will promote the hydrolysis-oxidation reaction of paper, accelerate the influence of unfavorable chemical components in paper on paper, and also make handwriting materials diffuse and melt. Electronic document carriers are affected by temperature and humidity in completely different ways. When the temperature is too high or too low, the polyester matrix is easy to expand or contract, and the plastic, aluminum and carbon materials used in the optical disc carrier will also bend and deform, which will affect the accurate positioning of the laser beam and the reading and writing of data. Experiments show that the standard temperature for storing paper documents is 14℃-24℃ and the relative humidity is 45%-60%, while the ideal temperature for storing electronic documents is 16℃-20℃ and the relative humidity is 40% 5%. It can be seen that the influence of temperature and humidity on electronic files and paper files is different.
2, the difference of dust influence. The harm of dust to paper is mainly the mechanical wear of paper, the formation of "blocking bricks" by adhesion to paper and the mildew of paper. The damage of dust to electronic document carriers mainly includes physical damage, chemical damage and biological damage. Physical damage refers to the pollution and scratching of the surfaces of disks, tapes and optical disks, resulting in the damage of recorded information; Chemical damage means that the chemical components contained in dust will damage the magnetic disk, magnetic tape and optical disk carrier by different degrees of corrosion, degradation and other chemical actions, resulting in the disappearance of recorded information; Biological damage means that dust is the disseminator of mold spores, and it is also the culture medium and breeding ground of mold. Enzymes and organic acids secreted by molds will damage magnetic carriers and optical disks, resulting in data loss. To sum up, dust will damage paper and electronic document carriers. As far as paper is concerned, even if dust has caused substantial damage to it, such as wearing paper, forming "bricks", producing color spots and mildew spots, the recorded information can be restored to a great extent by means of repair. However, once the dust does harm to the electronic file carrier, the information recorded on the carrier may be partially lost, and the original information cannot be read on the computer system, which makes the electronic file lose its preservation value. Therefore, it is of great significance to prevent dust from harming electronic document carriers, and strict dust prevention measures should be taken during the formation and use of electronic documents.
3. Difference of external magnetic field and mechanical vibration. Magnetic field and mechanical vibration have no influence on paper files, but the magnetic carrier of electronic files is the most important factor. The external magnetic field acts on the magnetic carrier, which can demagnetize or magnetize the remanence of the magnetic coating, resulting in signal loss or signal-to-noise ratio reduction, destroying the recorded information and affecting the reading effect. In addition, strong mechanical vibration will also affect the arrangement order of magnetic molecules in magnetic carrier materials, leading to the attenuation of remanence, thus destroying recorded signals. Therefore, it is necessary to prevent the influence of external magnetic fields, such as keeping away from strong magnetic fields, storing magnetic carriers in diamagnetic frames or metal boxes, and avoiding strong mechanical vibration.
4. The difference between light and harmful gases. The harm of light and harmful gases to paper is mainly to promote the hydrolysis and oxidation of paper, which leads to the decline of paper strength. Harmful gases and light, especially ultraviolet rays, are more destructive to electronic documents. Harmful gases, such as sulfur dioxide, hydrogen sulfide, nitrogen dioxide and chlorine, are acidic and oxidizing. Under certain conditions, they corrode and destroy the magnetic carrier and optical disk, resulting in the aging and deterioration of the disk base, the shedding of magnetic powder and the loss of electronic file information. Light can make the carrier material of electronic documents undergo photooxidation reaction, which makes the substrate of optical disc tape age and the strength decrease. At the same time, the energy of ultraviolet ray is enough to destroy the stability of remanence of magnetic carrier, which leads to signal attenuation and affects the reading and writing effect of magnetic recording information.
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