Preservation And Conservation

Preservation and conservation of Library Materials Dr. M. R. Rawtani Deptt. of Lib. & Info. Science University of Rajasthan, Jaipur

Evolution of Writing Materials  

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Stone & Metal 5000 years Ago Clay Tablets Use by Sumerian 600 B.C. Papyrus Use by Egyptians in 600 B.C. Skin Use in 190 B.C.

Early Writing Materials in India    

Stone & Metal Plates Birch-Bark Palm-Leaf Paper

Concept of Preservation & Conservation 

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Preservation is process of keeping an object safe harm or loss, damage, destruction or decay, and maintaining it in a sound condition for present use. Conservation is an activity of which Preservation is one aspect and Conservation with the remedial treatment and restoration of document.

Types of Documents    

Palm Leaf Manuscripts Birch Bark Manuscripts Manuscripts, Book, Periodicals etc. Non Book Materials   

Film Media Slide Microfilm, Magnetic Tape & Optical Storage etc.

Preservation: Palm-Leaf 

Storing 

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Manuscripts placed and tied between wooden boards with wrapped cloth High temperature and low humidity are extremely injurious. The ideal environment is 22-25˚ C and relative humidity between 45-55%

Preservation: Palm-Leaf 

Protection from Insects 

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Use of Insect Repellants

Fumigation 

Using Carbon tetrachloride and ethylene dichloride (1:1)

Preservation: Paper 

Causes of Deterioration of Materials 

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Inherent Causes – inherent strength of paper depends on the length and strength of organic fibers External Causes    

Temperature and Relative Humidity Light Biological Agents Atmospheric Pollutants

Preservation: Paper 

Human Causes  

Handling by Library Staff Handling by Users

Preservation – Non Book Materials: Basic Consideration 

Physical Environment 

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Temperature - No single temperature can be prescribed for media formats is 75˚F for videotapes and cassettes; for magnetic tapes is between 50˚F to 125˚F Humidity – Non Book materials are sensitive to this factor. Ideal humidity factor is 45%±5%

Preservation – Non Book Materials: Basic Consideration 

Security – It focus on protection against human problems such as vandalism and pilferage. It will be necessary to store in a such location and manner that these cannot be accessed without assistance of staff.

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Circulation

Policy

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Evolved a balance between security and service. A strict inhouse circulation policy has certain advantages

Preservation – Non Book Materials: Basic Consideration 

Maintenance of Equipments - Non book materials like videotapes, film, tapes, slides, transparencies, film strips etc. require additional equipments for their usage. These items are all susceptible to damage caused by improper maintenance of equipments.

Preservation – Non Book Materials: Basic Consideration 

Storing

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Handling - non book materials are

non book materials like phonograph records, tapes, Film, CDRom etc. should be stored in vertical position. mostly delicate and require proper handling by the librarian and the user.

Hazards to Library Materials 

Environmental Factor      

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Temperature Light and Darkness Humidity and Moisture Water Smoke Dust and Dirt

Chemical Factors

Hazards to Library Materials 

Biological Factor  

Silver Fish

Fungi Insects

Termite

Book Worm

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