Look up preservation in Wiktionary, the free dictionary.
Preservation may mean: Wikipedia does not have an article with this exact name. ... Wiktionary (from wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ...
Cultural Heritage Preservation, which includes:
Preservation in Library and Archival Science, the theory and practice of actively maintaining artifacts and the intellectual record.
Self preservation, part of an animal's fundamental instinct which demands that the organism survive
Conservation is the profession devoted to the preservation of cultural property for the future. ... It has been suggested that Digital obsolescence be merged into this article or section. ... The film preservation, or film restoration, movement is an ongoing project among film historians, archivists, museums, and non-profit organizations to rescue decaying film stock and preserve the images which they contain. ... The United States National Film Preservation Board is the board selecting films for preservation in the Library of Congress National Film Registry. ... Historic preservation, heritage management, or heritage conservation is the theory and practice of creatively maintaining the historic built environment and controlling the landscape component of which it is an integral part. ... When a computer stores text, the computer may keep or discard case information. ... Envirnonmental preservation is the strict setting aside of natural resources to prevent the use or contact by humans or by human intervention. ... Various preserved foods Food preservation is the process of treating and handling food in such a way as to stop or greatly slow down spoilage to prevent foodborne illness while maintaining nutritional value, density, texture and flavor. ... Self preservation is part of an animals instinct that demands that the organism survives. ...
This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.
In the following pages, a discussion of preservatives, the use of thimerosal as a preservative, guidelines on exposure to organomercurials (primarily methylmercury), thimerosal toxicity, recent and future FDA actions, and the conclusions of the Institute of Medicine's most recent review of thimerosal in vaccines are presented.
In some cases, preservatives are added during manufacture to prevent microbial growth; with changes in manufacturing technology, however, the need to add preservatives during the manufacturing process has decreased markedly.
At concentrations found in vaccines, thimerosal meets the requirements for a preservative as set forth by the United States Pharmacopeia; that is, it kills the specified challenge organisms and is able to prevent the growth of the challenge fungi (U.S. Pharmacopeia 2004).
The woodpreserving industry didn't begin in earnest though, until the late 1800s when America's railroads, faced with a shortage of naturally-durable woods for crossties, started saturating non-durable woods with creosote.
In addition to creosote, preservatives fall into two classes, oil-borne and water-borne, depending on whether they are carried into wood in an organic liquid or water.
Preservative penetration and retention with self-treating are minimal.
Feeds |
Contact