Magnetic recording materials are made with polymer materials, and contains some of its plasticizer, dispersing agents, were suitable for fungal decomposition absorption, Although the magnetic recording materials in the production are more or less the preservatives added, however, The so-called "anti-mold disk" can not guarantee that no Mold disk, but the probability and speed of others. Sometimes a disk suddenly unable to read or write, a cylinder worse, largely because of Mold and
dehumidifiers.com.cn/News/HumidityConcept/" target="_blank">Moisture.
Moistened magnetic recording materials, but may also lead to magnetic shedding; Mold, with base being eroded, Both will cause the data signal loss. Magnetic particle shedding and the mycelium will plug the computer and exciting VCRs, tape recorders of the head, not the normal machinery, even damaged head. In addition, the fungus can also spread through the head for.
Now, Most magnetic recording material recorded information used regularly re-copy approach to the prevention of wet moldy data signal caused losses, but time-consuming and cumbersome, and there are limitations. If not encrypted disk replication; After copying the tapes would result in a loss of quality. multiple copy audio quality is very poor, as well as meet the requirements. Magnetic recording materials to ensure the safety of magnetic recording materials should be stored in the relative humidity of about 40% in the environment.
The air of sulfur dioxide, hydrogen sulfide, nitrogen oxides, carbon monoxide, chlorine, Ozone and other industrial emissions of magnetic recording materials will be damaged. Which is the greatest impact of sulfur dioxide and hydrogen sulfide. Currently, urban
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dehumidifiers.com.cn/News/AirQuality" target="_blank">air pollution problems more generally, to prevent information loss, but also in magnetic recording materials decontamination space preservation.
For more than a decade the need for long-term preservation of the magnetic recording materials required by the national standards for preservation.
Yard calculated the national standard of GB 2887-89 66C media storage conditions of 4.12.2.1 corrosive gases environment grading paper tape media disk Grade A Grade B has no record has been recorded record has been recorded sulfur dioxide ≤ 0.1 5 ≤ a temperature of 5-50 "32 5-50 4-51.5 H2S ≤ 0.01 ≤ 0.1 humidity 40-7 0% 20-80 8-80% mg/m3 Note : The standard storage conditions for the relaxation of the ceiling of 80%, otherwise the standards impossible to enforce. However, the incidence of fungal conditions can be seen, in fact 80% already unsafe areas. In fact so long as the relative humidity of 40% control, we will be able to reach safe storage purposes.