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Showing 45381 - 45400 of 82972 results
  • Dynamic Characteristics of the Instrumented Handle and Adapter Recommended in the ISO 10819 1996
    Dynamic Characteristics of the Instrumented Handle and Adapter Recommended in the ISO 10819, 1996
    Bader J ;
    Caporali SA
    2001/06/05 | National Institute for Occupational Safety and Health (NIOSH)
    The ISO-10819 (1996) recommends a design of instrumented handle and specifies a palmheld adapter for laboratory assessment of anti-vibration performance of gloves. Although these designs and test procedures have been widely used, many studies have acknowledged a relatively high degree of measurement error associated with the test fixture design. Th ...
    Public Domain
  • An investigation of fungal contamination in a hospital setting
    An investigation of fungal contamination in a hospital setting
    Johnson M ;
    Kreiss, Kathleen
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    An investigation was conducted at an 8-story hospital due to a reported cluster of work-related asthma on the eighth floor of the facility. There has been ongoing renovation throughout the building for the past 5 years. The occupants reported occasional severe water damage from roof leaks. Although, there were no obvious signs of mold contamination ...
    Public Domain
  • Kerosene cleaning disturbs the barrier function of the skin and alters the organ distribution of BAP applied topically in mice
    Kerosene cleaning disturbs the barrier function of the skin and alters the organ distribution of BAP applied topically in mice
    Hoath S ;
    LaDow C
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Kerosene cleaning following treatment with used gasoline engine oil, a complex mixture containing polycyclic aromatic hydrocarbons, increased the relative and absolute levels of DNA adducts in the lungs of mice relative to animals treated with the used oil alone. To determine the mechanism for the effect, we topically treated animals with 3HBAP( 10 ...
  • Quantitative determination of total aliphatic isocyanates on skin and surfaces using the map reagent
    Quantitative determination of total aliphatic isocyanates on skin and surfaces using the map reagent
    Bello D ;
    Liu Y
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    There is increasing interest in the effects of dermal exposure to isocyanates. One of the limitations with determining dermal exposures has been the lack of a suitable analytical method for the quantification of isocyanates sampled from skin and work surfaces. Sample preparation and analysis were performed according to NIOSH draft Method 5525 for t ...
    Public Domain
  • Exhaust ventilation design and occupational exposure to respirable crystalline silica during readymix concrete truck drum cleaning
    Exhaust ventilation design and occupational exposure to respirable crystalline silica during ready-mix concrete truck drum cleaning
    Almaguer, Daniel ;
    Echt, Alan S.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    A study was conducted to evaluate worker exposures to respirable crystalline silica during interior cleaning of ready-mix concrete truck drums. This study was conducted at a ready-mix concrete plant with a fleet of 27 ready-mix trucks. Ready-mix drum cleaning operations are conducted once per calendar year, during the winter slowdown. The cleaning ...
    Public Domain
  • Control technology and exposure assessment for occupational exposure to crystalline silica report of 32 case studies
    Control technology and exposure assessment for occupational exposure to crystalline silica: report of 32 case studies
    Almaguer, Daniel ;
    Echt, Alan S.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    A major study to evaluate respirable crystalline silica exposures and document associated engineering controls was conducted in support of OSHA rule-making by NIOSH. This study examined 32 sites in a variety of manufacturing and construction settings. Personal air and bulk samples were collected in accordance with NIOSH Methods 0600 and 7500. At ea ...
    Public Domain
  • Characterization and control of fungal exposure during document restoration at the National Archives Laboratory
    Characterization and control of fungal exposure during document restoration at the National Archives Laboratory
    Harrison J ;
    Jones, William G.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    In this study, we examined the exposures associated with the restoration of historical documents at the National Archives Laboratory in College Park, Maryland. When documents arrive with water damage and suspected mold growth, conservators use various mechanical means (vacuuming, brushing, wiping, and erasing) to remove contamination. This work can ...
    Public Domain
  • Isocyanate exposure assessments using the MAP method a summary of recent NIOSH Health Hazard Evaluations
    Isocyanate exposure assessments using the MAP method: a summary of recent NIOSH Health Hazard Evaluations
    Reh, Christopher M. ;
    Roegner, Kevin C.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Background: NIOSH recently developed a sampling and analytical method for determining airborne exposures to isocyanate-containing compounds. The method's derivatizing agent is 1-(9-anthracenylmethyl) piperazine (MAP), which converts the isocyanate into a stable urea derivative. When sampling for isocyanates, air is drawn through a MAP impregnated f ...
    Public Domain
  • Blasting Abrasives Hazard Comparison Using In Vivo Data and Respirable Dust Generating Characteristics from EnvironmentallyControlled Laboratory Field Studies
    Blasting Abrasives’ Hazard Comparison Using In Vivo Data and Respirable Dust Generating Characteristics from Environmentally-Controlled Laboratory & Field Studies
    Ahlers, Heinz ;
    Castranova, Vincent
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Abrasive blasting, a process of bombarding surfaces with a media of small abrasive particles carried in a high velocity air stream, is used for cleaning and etching various surfaces. Historically the most common form of abrasive blasting, sand blasting, generates respirable silica dust, which can lead to the development of silicosis, a potentially ...
    Public Domain
  • Air Inlet Velocity Profile An Important Factor in Computational Fluid Dynamic Simulation of Indoor Contaminant Dispersion
    Air Inlet Velocity Profile: An Important Factor in Computational Fluid Dynamic Simulation of Indoor Contaminant Dispersion
    Feigley C ;
    Lee E
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Determining airborne contaminant transport and distribution in buildings is often essential for understanding indoor air quality problems. Computational fluid dynamics (CFD) has been used increasingly to simulate airflow and contaminant transport processes, but many simulation efforts have not been wholly successful. Thus, understanding the factors ...
  • The effect of two ventilation methods on weld fume exposure in a shipyard confinedspace welding task
    The effect of two ventilation methods on weld fume exposure in a shipyard confined-space welding task
    Blade, Leo M. ;
    Hudock, Stephen D.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Recent NIOSH studies have indicated that shipyard confined-space welding presents unique fume exposure control problems. Limited options for worker positioning (in reference to the air flow direction) and posture (in regards to the weld fume plume) can significantly affect weld fume exposure, resulting in eight-hour TWAs for PBZ concentrations that ...
    Public Domain
  • Controlling Respirable Quartz Dust in SandBlasting Role of Sand Particle Size and a Dust Suppression Agent
    Controlling Respirable Quartz Dust in Sand-Blasting: Role of Sand Particle Size and a Dust Suppression Agent
    Greskevich, Mark F. ;
    Nelson J
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Abrasive blasting with sand can generate high concentrations of respirable quartz dust to which workers can be exposed. Overexposure to such dust can lead to the development of silicosis, a potentially deadly lung disease. Abrasive blasting is prevalent in construction, automotive, and shipbuilding industries and is often used for cleaning. The pro ...
    Public Domain
  • Use of a Differential PressureBased Detector Tube to Measure Resirable Coal Dust
    Use of a Differential Pressure-Based Detector Tube to Measure Resirable Coal Dust
    Page S ;
    Vanderslice S
    2001/06/02 | Mining Publications
    The National Institute for Occupational Safety and Health has evaluated a new version of a dust sampler at the Pittsburgh Research Laboratory. This device uses an inexpensive plastic disposable detector tube to provide an immediate indication of cumulative dust exposure. A low flow rate pump draws a dust sample through a foam section and onto a tre ...
    Public Domain
  • Findings from a NIOSH IEQ investigation
    Findings from a NIOSH IEQ investigation
    Burr, Gregory A. ;
    Martinez, Kenneth F.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Background: In March 2000, NIOSH conducted an indoor environmental quality (IEQ) evaluation in a two-story office building located in South Carolina. Workers were concerned about exposure to carbon monoxide (CO), as well as mold in the building. Their symptoms included headache, sinus problems, and upper respiratory problems. Methods: Measurements ...
    Public Domain
  • Field comparison of IOMs and impingers for sampling of total aliphatic isocyanates in air with the map reagent
    Field comparison of IOMs and impingers for sampling of total aliphatic isocyanates in air with the map reagent
    Bello D ;
    Liu Y
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Results of a comparative field study on the performance of 25-mm inhalable samplers (IOM) and midget impingers for the collection of total isocyanates in air using the MAP reagent are presented here. Air sampling and analysis was performed according to the NIOSH MAP draft method 5525. Midget impingers, filled with 15 mil x 10-4 M MAP in butyl benzo ...
    Public Domain
  • Evaluation of Hearing Conservation Practices in an Industry with a High Rate of Workers Compensation Claims for Hearing Loss
    Evaluation of Hearing Conservation Practices in an Industry with a High Rate of Workers’ Compensation Claims for Hearing Loss
    Swan S
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Washington State has experienced a huge increase in the number of workers' compensation claims accepted each year for hearing loss. The annual costs of disability compensation rose twenty-fold in a decade, exceeding 40 million dollars in 1998. To determine whether there is any ongoing risk for hearing loss in industries with high rates of hearing l ...
  • Biological monitoring to assess exposure to hexamethylene diisocyanate in auto body repair shops
    Biological monitoring to assess exposure to hexamethylene diisocyanate in auto body repair shops
    Berode M ;
    Boeniger, Mark F.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Urinary hexane diamine (HDA) has been reported as a good biomarker of occupational exposure to hexamethylene diisocyanate (HDI). However, most previous studies in auto body shops have limited their measurements to small numbers of workers and job groups. This study was designed to evaluate the temporal, inter- and intra-worker variability of urinar ...
    Public Domain
  • Evaluation of existing technologies for the control of exposures to hexavalent chromiumcontaining mists and dusts
    Evaluation of existing technologies for the control of exposures to hexavalent chromium-containing mists and dusts
    Blade, Leo M. ;
    Catalano JD
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    The National Institute for Occupational Safety and Health (NIOSH) conducted 20 field surveys in selected industries, to characterize workers' exposures to hexavalent chromium-containing airborne particulate and evaluate existing technologies for controlling these exposures. This substance is a respiratory irritant, and chronic inhalation may cause ...
    Public Domain
  • Effect of Good and PoorFitting HalfMask Respirators on Protection Under Actual Workplace Environments at a Steel Foundry
    Effect of Good- and Poor-Fitting Half-Mask Respirators on Protection Under Actual Workplace Environments at a Steel Foundry
    Campbell DL ;
    Coffey, Christopher C.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    No correlation between workplace protection factors and quantitative fit factors (FFs) has been previously found. In a recent laboratory study, simulated workplace protection factors, based on total Freon exposure dose, were found to be correlated to fit factors using the PortaCount Plus (r-squre = 0.71) when poor-fitting respirators (FFs < 100) we ...
    Public Domain
  • The Ability of Five FitTest Methods to Screen Out Poorly Fitting N95 FilteringFacepiece Respirators
    The Ability of Five Fit-Test Methods to Screen Out Poorly Fitting N95 Filtering-Facepiece Respirators
    Campbell, David D. ;
    Coffey, Christopher C.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Currently there are five fit-test methods which can be used for the fit-testing of N95 filtering-facepiece respirators. Two of these fit-test methods are qualitative (Bitrex and Saccharin) and three are quantitative (the PortaCount Plus corrected for filter penetration, the PortaCount Plus with the N95-Companion accessory (Companion), and generated ...
    Public Domain
45381 - 45400 / 82972