Workplace Air Analysis Of Respirable Crystalline Silica By Fourier Transform Infrared Spectroscopy
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Author | : British Standards Institute Staff |
Publisher | : |
Total Pages | : 38 |
Release | : 1918-07-20 |
Genre | : |
ISBN | : 9780580840593 |
Spectrophotometry, Industrial air pollutants, Air pollution, Determination of content, Cristobalite, Silicon dioxide, Chemical analysis and testing, Infrared radiation, Particulate air pollutants, X-ray diffraction analysis, Quartz, Sampling methods, Occupational safety, Air, Environment (working)
Author | : |
Publisher | : |
Total Pages | : 0 |
Release | : 2023 |
Genre | : Coal miners |
ISBN | : |
Current commercially available methods do not allow for timely or continuous assessment of respirable crystalline silica (RCS) concentrations, either on site or on-person and in the breathing zone (i.e., monitor wearability for direct exposure assessment). These factors represent a substantial barrier to widespread, actionable RCS exposure assessment in mine workers. AethLabs has developed a miniaturized, wearable instrument for the measurement of personal exposure to RCS which specifically measures the mid-IR absorption of RCS dust in real-time.
Author | : American Society for Testing and Materials |
Publisher | : |
Total Pages | : 0 |
Release | : 2014 |
Genre | : Air |
ISBN | : |
Author | : British Standards Institute Staff |
Publisher | : |
Total Pages | : 38 |
Release | : 1915-10-31 |
Genre | : |
ISBN | : 9780580721809 |
Air, Air pollution, Industrial air pollutants, Environment (working), Chemical analysis and testing, Determination of content, Silicon dioxide, Quartz, Cristobalite, Particulate air pollutants, Occupational safety, X-ray diffraction analysis, Infrared radiation, Spectrophotometry, Sampling methods
Author | : Donald P. Tuchman |
Publisher | : |
Total Pages | : 24 |
Release | : 1992 |
Genre | : Air filters |
ISBN | : |
The U.S. Bureau of Mimes is investigating Fourier transform infrared (FTIR) spectroscopy for on- filter quartz analysis of respirable dust. A custom accessory is described for full-face examination of filters utilizing a large-diameter infrared (IR) beam. The accessory positions samples to match diameters with that of the diverging analytical beam. Sample absorbance is then measured. With nonuniform deposition of dust on collection filters being a major issue for such analyses, this approach is the most direct way to accomplish sample area averaging. The approach is unconventional since it utilizes large-beam geometries instead of the usually desired minimized beam dimensions. The issues and problems involved in the analysis of quartz on a filter matrix are discussed. Absorption bands chosen, light-scattering effects, curved baselines, random noise, interference fringes, and possible solutions to technical difficulties are the topics covered. The more significant findings include a 20-pg detection limit for quartz when the custom accessory is used and minimal occurrence of light-scattering effects at low wavenumbers. The custom accessory performance was satisfactory and merits further work. With continued research, an on-filter method for quartz analysis of respirable dusts seems achievable
Author | : British Standards Institute Staff |
Publisher | : |
Total Pages | : 42 |
Release | : 1915-10-31 |
Genre | : |
ISBN | : 9780580721816 |
Air, Air pollution, Industrial air pollutants, Environment (working), Chemical analysis and testing, Determination of content, Silicon dioxide, Quartz, Cristobalite, Particulate air pollutants, Occupational safety, X-ray diffraction analysis, Infrared radiation, Spectrophotometry, Sampling methods
Author | : |
Publisher | : |
Total Pages | : 17 |
Release | : 2014 |
Genre | : Air |
ISBN | : |
Author | : British Standards Institute Staff |
Publisher | : |
Total Pages | : 48 |
Release | : 1910-01-31 |
Genre | : |
ISBN | : 9780580589607 |
Air, Air pollution, Industrial air pollutants, Environment (working), Chemical analysis and testing, Determination of content, Silicon dioxide, Quartz, Cristobalite, Particulate air pollutants, Occupational safety, X-ray diffraction analysis, Infrared radiation, Spectrophotometry, Sampling methods
Author | : Health and Safety Laboratory (Great Britain) |
Publisher | : |
Total Pages | : 15 |
Release | : 2005 |
Genre | : |
ISBN | : 9780717628971 |
Author | : National Institute for Occupational Safety and Health |
Publisher | : |
Total Pages | : 136 |
Release | : 1974 |
Genre | : Hazardous substances |
ISBN | : |