Asbestos fibers

With the exception of glass fiber, asbestos (qv), and the specialty metallic and ceramic fibers, textile fibers are a class of soHd organic polymers distinguishable from other polymers by their physical properties and characteristic geometric dimensions (see Glass Refractory fibers). The physical properties of textile fibers, and indeed of all materials, are a reflection of molecular stmcture and intermolecular organization. The abiUty of certain polymers to form fibers can be traced to several stmctural features at different levels of organization rather than to any one particular molecular property. 

ASTM D2824, Aluminum-Pigmented Asphalt Roof Coatings, Non-Fibered, Asbestos, and Fibered, and Fibered without Asbestos, ASTM, Philadelphia, Pa. 

Asbest-aufschlkmmung, /. asbestos suspension -drahtnetz, n. asbestos wire gauze, -faser, /. asbestos fiber. -filz,m. asbestos felt. -flocken f.pl. asbestos flocks, asbestos wool, -gewebe, n. asbestos cloth, -handschuh, m. asbestos glove, -holz, n. asbestos lumber, -luftbad, n. asbestos air bath, -oUtb, n, short-fibered asbestos, -papier, n. asbestos paper, -pappe,/. asbestos board, -platte, /. asbestos plate or board, -schale, /. asbestos dish, -schicht, /. asbestos layer or bed. -schlefer, m. asbestos alate. -schirm, m. asbestos screen, -schnur, /, asbestos twine or cord, -schurz, m -schurze, /, asbestos apron. -woUe, /. asbestos wool. 

Occurrences in the United States were known as early as 1698 with numerous finds along Brandywine Creek in Pennsylvania (Frondel, 1988). The celebrated purse made from asbestos that Benjamin Franklin took to London in 1724, and which now resides in the British Museum of Natural History, may have been made of long-fiber asbestos from Newbury, Massachusetts. As a journeyman printer, Franklin made paper from asbestos, as did many Europeans. It was also used in making lamp wicks and cloth. Commercial mining in the United States took place some time after the first discovery of asbestos on Staten Island, New York, in 1818. (Asbestos continued to be mined at the site until 1876.) By 1825 more than seventy localities were known to produce asbestos in the United States (Robinson, 1825). However, as early as 1804 Jameson had recorded the mineralogy of the species and listed the numerous university, societal, and private mineral collections containing specimens of asbestos from U.S. localities and asbestos products of local manufacture. 

Cross-fiber asbestos Term applied to aggregates of asbestos in veins (see Fig. 1.1 A) in which the fibers are arranged in parallel position, usually perpendicular to or sometimes at a low inclination angle to the rock surfaces. The term may be applied to either serpentine- or amphibole-asbestos. 

Short-fiber asbestos A trade name for asbestos with relatively short fibers. Both chrysotile and amphibole asbestos may occur in short fibers. 

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