Record Display for the EPA National Library Catalog

RECORD NUMBER: 139 OF 1066

OLS Field Name OLS Field Data
Main Title Brake Emissions: Emission Measurements from Brake and Clutch Linings from Selected Mobil Sources.
Author Jack, M. G. ; DuCharm, R. T. ;
CORP Author Bendix Research Labs., Southfield, Mich.
Year Published 1973
Report Number EPA-68-04-0020; 1557;
Stock Number PB-222 372
Additional Subjects ( Air pollution ; Asbestos) ; ( Automobiles ; Brakes(Motion arrestors)) ; ( Brakes(Motion arrestors) ; Air pollution) ; Disk brakes ; Drum brakes ; Brake linings ; Clutches ; Particles ; Chemical analysis ; Tests ; Motor vehicles ; Sampling ; Microscopy ; Estimates ; Particle size distribution ; Emission factors
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-222 372 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 322p
Abstract
In order to define the extent of gas and particulate emissions from automotive brakes (and clutches), a combination separation and storage collection system was devised. Unique emissions collectors for both disc and drum brakes and for a clutch were conceived, designed, and built as the main embodiment of this instrumentation. The brake emissions generated were removed from the various collectors and mass balances were performed. The particulates were processed and analyzed by a combination of optical and electron microscopy to ascertain the asbestos content and the asbestos particle size distribution in the wear debris. Comparisons of emissions from new and used friction materials, disc and drum brakes, and original equipment and aftermarket materials were made. Finally, an estimate was made of the total emission of asbestos by all of the vehicles in the country. (Modified author abstract)