National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Chrysotile Asbestos in Industry.

PB90155953

Publication Date	1978
Personal Author	Wallingford, K. M.
Page Count	26
Abstract	The six major forms of asbestos (1332214) were reviewed and then the most widely used form, chrysotile (12001295), was examined in more detail. The three largest industries using chrysotile include the asbestos/cement pipe industry, the asbestos friction products industry, and the asbestos textiles industry. A discussion was given for the production operations and products made in each of these industries. A brief comparison was included of the optical and electron microscopy techniques used in asbestos exposure evaluation. The United States Public Health Service, in 1964, initiated a comprehensive industrial hygiene study of these three industries to characterize the exposures to chrysotile asbestos and to establish new sampling and analytical methods. Some recent research based on samples collected during the study was reviewed as well. In comparing the usefulness of phase contrast microscopy and electron microscopy, it was determined that the phase contrast microscopy technique provided relatively good indications of asbestos fibers greater than 5 micrometers in length.
Keywords	Industrial medicine Serpentine Asbestos Manufacturing Fibers Exposure Inspection Textile industry Evaluation Occupational safety and health CAS 1332-21-4 CAS 12001-29-5
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 41I - Job Environment 94D - Job Environment 68G - Environmental Health & Safety 68A - Air Pollution & Control
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH. Div. of Surveillance, Hazard Evaluations and Field Studies.
Document Type	Technical Report
NTIS Issue Number	199009

Chrysotile Asbestos in Industry.

Chrysotile Asbestos in Industry.
PB90155953

Publication Date	1978
Personal Author	Wallingford, K. M.
Page Count	26
Abstract	The six major forms of asbestos (1332214) were reviewed and then the most widely used form, chrysotile (12001295), was examined in more detail. The three largest industries using chrysotile include the asbestos/cement pipe industry, the asbestos friction products industry, and the asbestos textiles industry. A discussion was given for the production operations and products made in each of these industries. A brief comparison was included of the optical and electron microscopy techniques used in asbestos exposure evaluation. The United States Public Health Service, in 1964, initiated a comprehensive industrial hygiene study of these three industries to characterize the exposures to chrysotile asbestos and to establish new sampling and analytical methods. Some recent research based on samples collected during the study was reviewed as well. In comparing the usefulness of phase contrast microscopy and electron microscopy, it was determined that the phase contrast microscopy technique provided relatively good indications of asbestos fibers greater than 5 micrometers in length.
Keywords	Industrial medicine Serpentine Asbestos Manufacturing Fibers Exposure Inspection Textile industry Evaluation Occupational safety and health CAS 1332-21-4 CAS 12001-29-5
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 41I - Job Environment 94D - Job Environment 68G - Environmental Health & Safety 68A - Air Pollution & Control
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH. Div. of Surveillance, Hazard Evaluations and Field Studies.
Document Type	Technical Report
NTIS Issue Number	199009