by U.S. Dept. of Labor, Mine Safety and Health Administration in Washington, D.C .
Written in English
|Series||Informational report -- IR 1118., Informational report (United States. Mine Safety and Health Administration) -- 1118.|
|Contributions||Thompson, E. M., United States. Mine Safety and Health Administration.|
|The Physical Object|
|Pagination||14 p. :|
|Number of Pages||14|
Gravimetric and instantaneous dust sampling instruments are used in these evaluations to measure and document dust levels to determine worker exposure. The Thermo personal DataRam (pDR) is an instantaneous sampler that uses light-scattering technology to provide relative measures of airborne respirable dust. The instruments were two identical TSI Corporation respirable aerosol mass monitors (RAMM), model , and one each of GCA Corporation respirable dust monitors (RDM), models , , and The RDM was a long-term sampler (sampling up to 8 h), whereas the other monitors employed sampling periods generally 2 min or less. Additional Physical Format: Online version: Vinson, Robert P. Performance evaluation of two light-scattering dust monitors. Pittsburgh, Pa.: U.S. Dept. of the. TSI DustTrak™ II and DRX Aerosol Monitors are light years ahead of any other. The DustTrak DRX Monitor, for instance, simultaneously measures both mass and size fraction – something no other dust monitor can do. Measure PM1, PM, respirable, PM10 and PM Total simultaneously with no need for size-selective inlet conditioners.
Introduction For the measurement of respirable dust, instantaneous dust monitors based on light-scattering principles have an advantage when compared to . The Bureau of Mines evaluated two real-time light-scattering dust monitors by measuring their response to Pittsburgh seam coal dust and Arizona road dust (ard). Both monitors--the pds-1, a personal dust sensor, and the pcd-1, a digital dust indicator--are made in Japan by sibata scientific ltd. Tests were conducted inside a laboratory aerosol. Video techniques for monitoring exposure, such as NIOSH’s “Helmet-CAM,” employ both real-time dust monitors and mobile video cameras to assess workers’ respirable dust exposures. Many real-time personally worn dust monitors utilize light scattering sensing elements, which are subject to measurement biases as a function of dust type (size, . The RDM can also be fitted with a horizontal-plate elutriator which enables the re- Instantaneous dust exposure monitors 87 i ~ i lit. ] Fig. 2. GCA RDM beta-ray attenuation respirable dust monitor. spirable fraction of dust, as defined by the British Medical Research Council's (BMRC) criterion, to be sampled.
Additional Physical Format: Print version: Vinson, Robert P. Performance evaluation of two light-scattering dust monitors. Pittsburgh, Pa.: U.S. Dept. of the. Performance evaluation of two light-scattering dust monitors [Robert P. Vinson] on *FREE* shipping on qualifying offers. This report describes the development, design, fabrication, and testing of a portable, battery-operated, light scattering monitor for the rapid measurement of the concentration of respirable dust in mining environments. The instrument incorporates state-of-the-art design characteristics and makes use of advanced solid-state components both for. The two dust monitors Respicon TM and Respicon 2 TM were designed as a personal dust monitors to be carried around by a worker during a shift, or suitable for stationary measurements. It can thus be employed in several ways: to record dust exposure over time in a single location; to determine dust exposure of a worker during a shift; to find.