Wangda Showcases-design,supply and install high-security and high-standard but cost-effective museum display cases,museum display cabinets,museum showcases,vitrines,vitrinen to museums,library,archive,gallery,memorial hall and collectors for for ancient artifacts and fine artworks protection,conservation and exhibition.
2016年8月21日星期日
Video of Wangda Showcases-museum display cases
Wangda Showcases-design,supply and install high-security and high-standard but cost-effective museum display cases,museum display cabinets,museum showcases,vitrines,vitrinen to museums,library,archive,gallery,memorial hall and collectors for for ancient artifacts and fine artworks protection,conservation and exhibition.
2013年2月15日星期五
Temperature and Relative Humidity in Museum Display Cases from Wangda Showcases Limited
Maintaining acceptable levels of temperature and relative humidity
in mueum display cases is very important. This will
help slow the rate of deterioration for the items on display just as it does for
those in storage. The guidelines provided in Basic Preservation Considerations
should be followed in determining acceptable levels.
What Are Macro- and Micro-environments?
Acceptable levels of temperature and relative humidity are controlled within a macro-environment, a micro-environment, or a combination of both. The definitions of these terms seem to vary within standard museum preservation practice. In general, the term macro-environment refers to the conditions within a large space, such as the entire display area, whereas micro-environment refers to the isolated conditions within a smaller enclosed space, such as a display case.
What Are Active and Passive Systems?
The conditions in the macro- or micro-environment can be achieved by what preservation professionals refer to as an active or a passive system. These definitions also vary in the preservation field. As the terms are used here, active systems usually employ equipment such as furnaces, boilers, air conditioners, dehumidifiers, and humidifiers. Passive systems, on the other hand, usually rely on the natural buffering capacity of materials such as paper, cloth, wood, and silica gel.
How Are Conditions Maintained?
In practice, a combination of macro- and micro-environments and active and passive systems is often utilized to maintain acceptable conditions. The temperature and relative humidity of the entire display area—the macro-
environment—are maintained by the building-wide heating and air conditioning equipment—an active system. For highly sensitive materials, such as metals that corrode in high humidity or wood that shrinks in low humidity, a humidity- buffering material such as silica gel—a passive system—is used in a display case—a micro-environment—to adjust conditions and maintain them at the special levels needed by especially sensitive materials.
If you expect to loan items to a museum in another geographic area where the conditions are very different from those to which your items are acclimated, you may need to use a microenvironment with a passive system. The same is true when borrowing items that you need to protect while they are in your care. Do not hesitate to consult a preservation professional for guidance in this.
Monitoring
The temperature and relative humidity in the display area should be monitored just as in the storage area. The instruments described in Basic Preservation Considerations can be used. Some of these are available in small sizes that work well in display cases.
What Are Macro- and Micro-environments?
Acceptable levels of temperature and relative humidity are controlled within a macro-environment, a micro-environment, or a combination of both. The definitions of these terms seem to vary within standard museum preservation practice. In general, the term macro-environment refers to the conditions within a large space, such as the entire display area, whereas micro-environment refers to the isolated conditions within a smaller enclosed space, such as a display case.
What Are Active and Passive Systems?
The conditions in the macro- or micro-environment can be achieved by what preservation professionals refer to as an active or a passive system. These definitions also vary in the preservation field. As the terms are used here, active systems usually employ equipment such as furnaces, boilers, air conditioners, dehumidifiers, and humidifiers. Passive systems, on the other hand, usually rely on the natural buffering capacity of materials such as paper, cloth, wood, and silica gel.
How Are Conditions Maintained?
In practice, a combination of macro- and micro-environments and active and passive systems is often utilized to maintain acceptable conditions. The temperature and relative humidity of the entire display area—the macro-
environment—are maintained by the building-wide heating and air conditioning equipment—an active system. For highly sensitive materials, such as metals that corrode in high humidity or wood that shrinks in low humidity, a humidity- buffering material such as silica gel—a passive system—is used in a display case—a micro-environment—to adjust conditions and maintain them at the special levels needed by especially sensitive materials.
If you expect to loan items to a museum in another geographic area where the conditions are very different from those to which your items are acclimated, you may need to use a microenvironment with a passive system. The same is true when borrowing items that you need to protect while they are in your care. Do not hesitate to consult a preservation professional for guidance in this.
Monitoring
The temperature and relative humidity in the display area should be monitored just as in the storage area. The instruments described in Basic Preservation Considerations can be used. Some of these are available in small sizes that work well in display cases.
2012年12月20日星期四
Microclimate Control for Museum Display Cases from Wangda Showcases
Micorclimate-controlled museum
display showcases are much more conservational than traditional display
cases.Around the museum objects in the air-tight museum display cases and
museum display cabinets,if the humidity and temperature is too high or too low,the objects will
be possibly damaged so it is necessary to keep a relative constant humidity and
temperature in the display volume.........
More details,please visit webiste: www dot wangdashowcases dot com
More details,please visit webiste: www dot wangdashowcases dot com
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