Caring for Cultural Material 1

Caring for Cultural Material 2

Damage and Decay

Managing Collections

Managing People

Handling, Transportation, Storage and Display

Glossary

Index

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Damage and Decay
In this volume:
Light and Ultraviolet Radiation
arrow Humidity and Temperature
Biological Pests
Dust and Pollutants
Common Deterioration Processes
Acknowledgments

Humidity and Temperature
In this chapter:
Objectives
Introduction
What is relative humidity?
How does relative humidity change?
Why worry about relative humidity and temperature?
Can the damage be prevented?
Identifying the source of the problem
What can be done to minimise damage?
Modifying the conditions in buildings
A word of caution about travelling exhibitions and loans
In an ideal world …
Australia’s climatic zones
  MORE ABOUT RELATIVE HUMIDITY AND TEMPERATURE
Measuring relative humidity
arrow Dehumidifiers
Humidifiers and steam generators
The use of silica gel
For further reading
Self-evaluation quiz
Answers to self-evaluation quiz

 

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Humidity and Temperature

Dehumidifiers

A dehumidifier is basically a cooling coil airconditioner. Instead of conducting the compressor heat out of the building, the heat is retained inside the building—and so the temperature does not change, except when the dehumidifier is in a small room. In this case, the temperature in the room can be raised by the operation of the dehumidifier.

Moisture from the air, however, is still condensed on the cooling coils, and taken away by a hose or collected in a bucket. Dehumidifiers are a remedial measure to adjust a dangerously wet environment.

If using a dehumidifier to dry an area of your building, remember to empty the catchment bucket—the buckets are not very big.

 

 

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