Preservation of Historical Records -- Preservation of Historical Records -- Copyright -- Foreword -- Preface -- Acknowledgments -- Abstract -- Contents -- 1 Recommendations -- GENERAL RECOMMENDATIONS -- RECOMMENDATIONS ON MASS TREATMENT -- RECOMMENDATIONS ON ARCHIVAL COPYING -- Recommendations for Preservation Action -- RECOMMENDATIONS ON PRESERVATION STRATEGY -- 2 Introduction -- CURRENT SITUATION AT THE NATIONAL ARCHIVES -- SCOPE OF STUDY -- OUTLINE OF PROPOSED ACTIONS -- Environmental Considerations -- Paper -- Photographic Film -- Magnetic Recording Media -- Optical Disks -- Semiconductors -- Discussion of Findings -- REFERENCES -- 3 Environmental Criteria -- MATERIALS CONSIDERED -- AIR POLLUTANTS -- OBSERVED DAMAGE -- Paper -- Leather -- Textiles -- Dyes, Pigments, and Inks -- Adhesives -- Corrosion of Metals -- Photographic Film -- Unregulated Pollutants -- INDOOR POLLUTANT LEVELS -- Sulfur Dioxide Levels -- Nitrogen Oxides -- Ozone Levels -- Particulate Levels -- POLLUTANT REMOVAL SYSTEMS -- Sulfur Dioxide Removal -- Nitrogen Oxides Removal -- Ozone Removal -- Particulate Matter Removal -- RECOMMENDED STANDARDS -- Temperature and Relative Humidity -- Air Quality -- Monitoring for Indoor Air Pollutant Objective Compliance -- Other Considerations -- REFERENCES -- 4 Paper -- RAW MATERIALS AND STRUCTURE -- PHYSICAL PROPERTIES -- PERMANENCE FACTORS -- PRESERVATION -- STANDARDS AND SPECIFICATIONS -- ADVANTAGES, DISADVANTAGES, AND CONCLUSIONS -- Advantages -- Disadvantages -- Conclusions -- REFERENCES -- 5 Photographic Film -- STRUCTURE -- APPLICATIONS -- PERMANENCE -- STORAGE STANDARDS -- MICROFILM USES -- TRENDS -- ADVANTAGES AND DISADVANTAGES -- Advantages -- Disadvantages -- REFERENCES -- 6 Magnetic Recording Media -- ARCHIVAL CRITERIA -- DEFINITIONS -- THE ELECTRONIC INFORMATION AGE -- ARCHIVAL PROPERTIES OF MAGNETIC RECORDING MEDIA.

TRENDS -- ARCHIVAL PROPERTIES OF SOFTWARE AND DOCUMENTATION -- ARCHIVAL PROPERTIES OF HARDWARE -- CONCLUSIONS -- REFERENCES -- 7 Optical Disks -- PERMANENCE OF OPTICAL DISK MEDIA -- STANDARDS -- PRESERVATION, USE, AND STORAGE -- TRENDS AND PROJECTIONS -- ADVANTAGES, DISADVANTAGES, AND CONCLUSIONS -- Advantages -- Disadvantages -- Conclusions -- REFERENCES -- Supplementary Bibliography -- 8 Discussion of Findings -- NATURE OF THE PROBLEM -- Condition of the Collection -- Prevention of Future Deterioration -- Paper and Film -- Magnetic Tape and Optical Disk -- Handling -- General Recommendations -- OPTIONS FOR MASS TREATMENT -- Environmental Control -- Mass Deacidification -- Recommendations on Mass Treatment -- A SYSTEMS APPROACH -- Suitability of Preservation Copying Media -- Copying Onto Magnetic or Optical Media -- Copying Onto Paper or Microfilm -- Recommendations on Archival Copying -- Decision Tree for Preservation Action -- Preliminary Considerations -- Criteria For Use -- Criteria For Condition -- Problem Distribution -- Recommendations for Preservation Action -- Preservation Actions by Categories -- Frequently Used, Satisfactory Condition -- Frequently Used, Unsatisfactory Condition -- Infrequently Used, Satisfactory -- Infrequently Used, Unsatisfactory Condition -- Implementation -- Recommendations On Preservation Strategy -- REFERENCES -- Appendix A Semiconductor Memories -- Appendix B Glossary -- Appendix C Biographical Sketches of Committee Members -- Index -- Photo Credits.