Library of Congress Subject Headings: Preservation Descriptors, "Free-Floating" Subdivisions

The following is a list of subdivisions commonly used with
Library of Congress Subject Headings for preservation.  Though
often used with subject headings, they do not appear in every
instance where they might be used in the list of preservation
descriptors.

Archive applications
   "Archive applications" is used as a subdivision under specific
    subjects; e.g., "Photostat -- Archive applications".

Bibliography
   "Bibliography" is used as a subdivision under specific
    subjects; e.g., "Bookbinding -- Bibliography".

Catalogs
   "Catalogs" is used as a subdivision under specific subjects;
    e.g., "Artists' materials -- Catalogs".   The term is
    typically used under types of library materials, microforms,
    objects, products and publications.
    NOTE: "Microform catalogs" is used to describe catalogs of
    micropublications except when the name of a microform is part
    of the subject heading; e.g., "Books on microform --
    Catalogs".

Conservation and restoration
   "Conservation and restoration" is used as a subdivision under
    specific subjects; e.g., "Books -- Conservation and
    restoration".  This term seems to be used under
    non-perishable materials.  The following is a partial list of
    subject headings which were subdivided by this term:
    ============================================================
        Art
        Books
        Charters
        Court records
        Legal documents
    ============================================================
    NOTE: The subdivisions "Preservation" and "Preservation and
    storage" are used to express similar concepts.
    NOTE: Cataloging agencies do not always apply these similar
    terms consistently.  Often, different agencies will have used
    different subdivisions to describe the same subject.

Dictionaries
   "Dictionaries" is used as a subdivision under specific
    subjects; e.g., "Bookbinding -- Dictionaries".
    NOTE: Dictionaries which are either incomplete lists or
    comprehensive but not alphabetically listed are subdivided
    using "Terminology".  Dictionaries which distinguish names
    are subdivided using "Nomenclature".

Handbooks, manuals, etc.
   "Handbooks, manuals, etc." is used as a subdivision under
    specific subjects; e.g., "Bookbinding -- Handbooks, manuals,
    etc."  The term typically describes operations, actions and
    procedures.  The following is a list of subject headings
    which were subdivided by this term:
    ============================================================
        Bookbinding
        Bookbinding -- Repairing
        Books -- Conservation and restoration
        Color photography
        Copying processes
        Disinfection and disinfectants
        Electrophotography
        Ethylene oxide -- Safety measures
        Fumigation
        Hygrometry
        Manuscripts -- Conservation and restoration
        Microphotography
        Neutralization (Chemistry)
        Pesticides
        Photography
        Polymers and polymerization
    ============================================================

History
   "History" is used as a subdivision under specific subjects;
    e.g., "Papermaking -- History".

Library applications
   "Library applications" is used as a subdivision under specific
    subjects; e.g., "Photostat -- Library applications".  The
    following is a list of subject headings which were subdivided
    by this term:
    ============================================================
        Computer output microfilm
        Computer output microfilm devices
        Electrophotography
        Facsimile transmission
        Insecticides
        Magnetic disks
        Magnetic tapes
        Microfiches
        Microfilms
        Microforms
        Micrographics
        Microphotography
        Optical disks
        Optical storage devices
        Pesticides
        Photographs
        Photostat
        Video discs
        Video tape recorders and recording
        Video tapes
    ============================================================

Microform catalogs
   "Microform catalogs" is used as a subdivision under specific
    subjects when the content of the catalog is a microform or
    microforms; e.g., "Newspapers -- Microform catalogs".  (Cf,
    "Catalogs".)

Nomenclature
   "Nomenclature" is used as a subdivision under specific
    subjects; e.g., "Insects -- Nomenclature".  This term is
    considered a special class of dictionaries in which names
    are distinguished.

Periodicals
   "Periodicals" is used as a subdivision under specific
    subjects; e.g., "Books -- Conservation and restoration --
    Periodicals".

Preservation
   "Preservation" is used as a subdivision under perishable
    products and antiquities; e.g., "Cotton fabrics --
    Preservation", "Paper -- Preservation", or "Buddhism --
    Sacred books -- Preservation".
    NOTE: The subdivisions "Conservation and restoration" and
    "Preservation and storage" are used to express similar
    concepts.
    NOTE: Cataloging agencies do not always apply these similar
    terms consistently.  Often, different agencies will have used
    different subdivisions to describe the same subject.

Preservation and storage
   "Preservation and storage" is used as a subdivision under
    specific subjects; e.g., "Magnetic tapes -- Preservation and
    storage".
    This term seems to be used under perishable materials which
    must be duplicated rather than conserved to prevent loss.
    The following is a partial list of subject headings which
    were subdivided by this term:
    ============================================================
        Data tapes
        Magnetic disks
        Magnetic tapes
    ============================================================
    NOTE: The subdivisions "Conservation and restoration" and
    "Preservation" are used to express similar concepts.
    NOTE: Cataloging agencies do not always apply these similar
    terms consistently.  Often, different agencies will have used
    different subdivisions to describe the same subject.

Research
   "Research" is used as a subdivision under specific subjects;
    e.g., "Adhesives -- Research".   The following is a list of
    subject headings which were subdivided by this term:
    ============================================================
        Adhesives
        Bactericides
        Book design
        Bookbinding
        Books -- Conservation and restoration
        Buffer solutions
        Fumigants
        Fumigation
        Insecticides
        Leather
        Microphotography
        Paper -- Preservation
        Paper chemicals
        Paper sizing
        Pesticides
        Photochemistry
        Photographic chemicals
        Photographic chemistry
        Photographic emulsions
        Photographic gelatin
        Photographic optics
        Photographic sensitometry
        Polymers and polymerization
    ============================================================

Specifications
   "Specifications" is used as a subdivision under specific
    subjects; e.g., "Microfilms -- Specifications".   The
    following is a list of subject headings which were subdivided
    by this term:
    ============================================================
        Bactericides
        Book boxes
        Book covers
        Book design
        Book drops
        Book ends
        Book jackets
        Book spines
        Bookbinding
        Bookbinding -- Paper bindings
        Bookbinding -- Repairing
        Books -- Conservation and restoration
        Buffer solutions
        Copying
        Diazo microfilm
        Diazotype
        Electric lamps
        Electric lamps, Incandescent
        Electric lighting
        Endpapers
        Fluorescent lamps
        Fluorescent lighting
        Fumigants
        Fumigation
        Glue
        Insecticides
        Lamps
        Leather
        Light filters
        Manuscripts -- Reproduction
        Marbling (Bookbinding)
        Microfiches
        Microfilms
        Microforms
        Microforms industry
        Micrographics
        Microphotography
        Motion picture film
        Paper
        Paper -- Preservation
        Paper, Plastic
        Paper chemicals
        Paper sizing
        Paperboard
        Paste
        Pesticides
        Photochemistry
        Photocopying processes
        Photographic chemicals
        Photographic chemistry
        Photographic emulsions
        Photographic gelatin
        Photographic optics
        Photographic sensitometry
        Photography
        Photography -- Apparatus and supplies
        Photography -- Films
        Photography -- Negatives
        Photography -- Plates
        Photography -- Printing papers
        Photography -- Printing processes
        Photography -- Processing
        Polymers and polymerization
        Printing
        Refrigeration and refrigerating machinery
        Reproduction paper
        Safety film
        Slides (Photography)
        Writing -- Materials and instruments
        Xerography
    ============================================================

Standards
   "Standards" is used as a subdivision under specific subjects;
    e.g., "Microfilms -- Standards".   The following is a list of
    subject headings which were subdivided by this term:
    ============================================================
        Bactericides
        Book boxes
        Book covers
        Book design
        Book drops
        Book ends
        Book jackets
        Book spines
        Bookbinding
        Bookbinding -- Paper bindings
        Bookbinding -- Repairing
        Books -- Conservation and restoration
        Copying
        Diazo microfilm
        Electric lighting
        Endpapers
        Fumigation
        Insecticides
        Manuscripts -- Reproduction
        Microfiches
        Microfilms
        Microforms
        Microforms industry
        Micrographics
        Microphotography
        Paper
        Paper -- Preservation
        Paper, Plastic
        Paper chemicals
        Paper sizing
        Paste
        Pesticides
        Photochemistry
        Photocopying processes
        Photographic chemicals
        Photographic chemistry
        Photographic emulsions
        Photographic gelatin
        Photographic optics
        Photographic sensitometry
        Photography
        Photography -- Films
        Photography -- Negatives
        Photography -- Plates
        Photography -- Printing papers
        Photography -- Printing processes
        Photography -- Processing
        Safety film
    ============================================================

Testing
   "Testing" is used as a subdivision under specific subjects;
    e.g., "Adhesives -- Testing".   The following is a list of
    subject headings which were subdivided by this term:
    ============================================================
        Adhesives
        Adhesives, Hot melt
        Bactericides
        Book design
        Book drops
        Book ends
        Bookbinding
        Buffer solutions
        Electric lamps
        Fluorescent lamps
        Fumigants
        Glue
        Insecticides
        Lamps
        Leather
        Light filters
        Microfiches
        Microfilms
        Microforms
        Motion picture film
        Paper
        Paper, Plastic
        Paper chemicals
        Paste
        Pesticides
        Photographic chemicals
        Photographic emulsions
        Photographic gelatin
        Photographic optics
        Photography
        Photography -- Films
        Photography -- Negatives
        Photography -- Plates
        Photography -- Printing papers
        Polymers and polymerization
        Refrigeration and refrigerating machinery
        Safety film
        Writing -- Materials and instruments
    ============================================================

SUBDIVISIONS COMMONLY ADDED TO SUBJECT HEADINGS FOR MATERIALS
USED IN PRESERVATION (i.e., adhesives, paper, pesticides, etc.).
    ============================================================
        -- Additives
        -- Analysis
        -- Brittleness
        -- Coloring
        -- Deterioration
        -- Drying
        -- Effect of radiation on
        -- Embrittlement
        -- Finishing
        -- Law and legislation
        -- Microbiology
        -- Microscopy
        -- Optical properties
        -- Patents
        -- Penetration resistance
        -- Permeability
        -- Quality control
        -- Research
        -- Solubility
        -- Specifications
        -- Standards
        -- Terminology
        -- Testing
        -- Testing -- Statistical methods
        -- Thermal properties
        -- Toxicology