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GAO Mine Safety and Health: Tampering Scandal Led ...

 GAO Mine Safety and Health: Tampering Scandal Led ...Pursuant to a congressional request, GAO reviewed the Mine Safety and Health Administration's (MSHA) development and use of tamperresistant devices, particularly cassettes and pumps, for collecting coal dust samples in its respirable coal dust program.

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An Evaluation of Sharp Cut Cyclones for Sampling Diesel ...

An Evaluation of Sharp Cut Cyclones for Sampling Diesel ...The respirable coal dust concentration in the chamber was maintained constant and different respirable target loadings were achieved by selecting different sampling intervals. After the first respirable target loading of 1 mg was achieved, the sampling of one set of three DPMSs and three SCCs was stopped.

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Diesel Particulate Matter (DPM) Cyclone

Diesel Particulate Matter (DPM) CycloneThe Diesel Particulate Matter (DPM) cyclone is specifically designed for sampling in atmospheres where it is necessary to separate DPM from other respirable dust. Small and lightweight, it is constructed from conductive plastic to prevent the buildup of electrostatic effects and uses a DPM cassette.

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Coal Dust Sampling Fraud, Appalachian Heritage | DeepDyve

Coal Dust Sampling Fraud, Appalachian Heritage | DeepDyveCoal Dust Sampling Fraud Coal Dust Sampling Fraud Oppegard, Tony. 00:00:00 Letters to the Editor Coal Dust Sampling Fraud Dear Editor: Thank you for publishing in your Fall 1996 issue the testimony given by coal miners Dana Hager, Earl Shackleford, and Herbert Metcalfe before the federal Advisory Committee on the Elimination of Pneumoconiosis Among Coal Mine Workers ("Coal .

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Coal Industry Awaits Oral Argument and Decision on Merits ...

Coal Industry Awaits Oral Argument and Decision on Merits ...Coal Industry Awaits Oral Argument and Decision on Merits of MSHA's Final Rule for Lowering Miners' Exposure to Respirable Coal Mine Dust The federal government regulates the coal mining industry to, among other things, protect miners from workrelated health risks.

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Size Selection Sampling Heads | Sensidyne

Size Selection Sampling Heads | SensidyneThis DorrOliver unit meets NIOSH sampling requirements for 10mm nylon cyclones, as specified for nuisance dust (#0600) and silica dust (#7500, 7501, 7601 and 7602). It is designed to separate the respirable fraction of airborne dust from the nonrespirable fraction; airborne particles with aerodynamic diameters between and 10 microns, capable of producing pneumonconiosus lung .

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MSHA News Release: Oneyear anniversary of respirable coal ...

MSHA News Release: Oneyear anniversary of respirable coal ...Nearly 62,000 dust samples were collected from surface and underground coal mines by the Mine Safety and Health Administration and coal mine operators, and only percent of these samples exceeded the dust concentration limit. MSHA alone collected nearly 30,000 samples at 330 underground and approximately 900 surface mines and facilities.

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SAMPLING DUST HOW MUCH DO YOU KNOW? | SGS Galson

SAMPLING DUST HOW MUCH DO YOU KNOW? | SGS GalsonTotal, or nuisance, dust sampling is performed by removing the plugs from the ports on the sampling cassettes to the air sampling equipment. NIOSH 0500 recommends sampling rates of 1 to 2 liters per minute (Lpm) for a maximum of 133 liters. RESPIRABLE DUST SAMPLING. When respirable dust (50% cut point of 4 microns) is being evaluated, you will need to use a cyclone.

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PARTICULATES NOT OTHERWISE REGULATED, RESPIRABLE .

PARTICULATES NOT OTHERWISE REGULATED, RESPIRABLE .PARTICULATES NOT OTHERWISE REGULATED, RESPIRABLE: METHOD 0600, Issue 2, dated 15 August 1994 Page 4 of 5 Bias can also be caused in a cyclone by the pulsation of the personal sampling pump.

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PowerPoint Presentation

PowerPoint PresentationMake NIOSHapproved respirators available when excessive dust levels are present. Report to MSHA any status changes that affect dust sampling within three days. Train miners, at least annually, on: The health hazards of breathing respirable coal mine dust. The purpose of effective dust sampling and dust controls

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MSHA Is Looking for Info on Coal Dust Controls EHS Daily ...

MSHA Is Looking for Info on Coal Dust Controls EHS Daily ...Jul 12, 2018· MSHA states that it is requesting information from stakeholders in a number of areas to assist in forming the framework of the study. The agency says it is interested in the engineering controls and best practices mine operators find most effective to achieve and maintain the required respirable coal mine dust and quartz levels—particularly those practices that can be replicated throughout ...

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New MSHA Coal Mining Dust Rule Takes Effect August 1, 2014

New MSHA Coal Mining Dust Rule Takes Effect August 1, 2014Jul 23, 2014· And that's why MSHA published a new rule in April to lower the rates of respirable coal mine dust–the stuff that causes black lung. And that rule is set to go into effect soon–August 1, 2014. What all that said, let's take a closer look at this new MSHA Coal Mining Dust rule.

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Respirable Crystalline Silica Sampling and Laboratory Analysis

Respirable Crystalline Silica Sampling and Laboratory Analysis– Cassettes for cracks / leaks – Integrity of tubing – Orings and seals – Clean cyclone and grit pot •Orientation of Sample Inlet and Cyclone •Maximize Sampling Air Volume •Know Where your Sampler has Been •Augment with Directreading Instruments •Avoid Sampler Contact with Settled Dust •Referee Potential Interferences. RJ ...

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11th Circuit Upholds Mining Agency's Coal Dust Rule, Phase ...

11th Circuit Upholds Mining Agency's Coal Dust Rule, Phase ...the use of single dust samples to determine compliance and MSHA's declaration that single sample results are "accurate"; the adoption of a reduced dust limit; the collection of an increased number of mandated samples, taken under higher production rates than current sampling; the use a new, instantaneous readout, sampling device; and

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Summary | Monitoring and Sampling Approaches to Assess ...

Summary | Monitoring and Sampling Approaches to Assess ...Monitoring and Sampling Approaches to Assess Underground Coal Mine Dust Exposures compares the monitoring technologies and sampling protocols currently used or required by the United States, and in similarly industrialized countries for the control of RCMD exposure in underground coal mines. This report assesses the effects of rock dust ...

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Coal Dust on the Horizon | Coal Age

Coal Dust on the Horizon | Coal AgeJun 12, 2009· Since 1972, MSHA regulations have provided that mine operators use the MSHA and NIOSHapproved coal mine dust personal sampler unit (CMDPSU) to sample mines to determine compliance with the MSHA coal dust exposure limit of 2 mg/m3. The current CMDPSU samples dust collected over an eighthour shift on cassettes.

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A COMPARISON OF COAL MINE RESPIRABLE DUST .

A COMPARISON OF COAL MINE RESPIRABLE DUST .The MSHA PEL for coal mine respirable PM is milligrams of respirable dust per cubic meter of air (mg/m3) (NIOSH Pocket Guide to Chemical Hazards, 2011). In coal mines, respirable PM is sampled using a cyclone (a device that seperates respirable PM from larger PM).

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FEDERAL MINE SAFETY AND HEALTH REVIEW COMMISSION

FEDERAL MINE SAFETY AND HEALTH REVIEW COMMISSIONOn April 9, 1999, John Kuzar, District Manager for Coal Mine Safety and Health District 9, notified Shoshone that it would be required to conduct sampling of the 060 designated occupation rather than the 044 designated occupation in the longwall section.

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Mine Safety and Health

Mine Safety and Health Any personal respirable coal mine dust sampling unit must be approved by MSHA and bear approval labels by both MSHA and NIOSH or HHS. Must be checked immediately (3 hours or less) before sampling shift under actual load to confirm flow rate of lpm and voltage of at least VDC.

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GAO Mine Safety and Health: Tampering Scandal Led ...

 GAO Mine Safety and Health: Tampering Scandal Led ...Pursuant to a congressional request, GAO reviewed the Mine Safety and Health Administration's (MSHA) development and use of tamperresistant devices, particularly cassettes and pumps, for collecting coal dust samples in its respirable coal dust found that: (1) before the Secretary of Labor's 1991 announcement of massive tampering with coal dust samples, no incentive existed for the ...

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UNPUBLISHED UNITED STATES COURT OF APPEALS

UNPUBLISHED UNITED STATES COURT OF APPEALSin the mine. Coal dust and silica dust in the air in coal mines may cause pneumoconiosis (black lung disease) in miners. While mine operators are required to conduct dust sampling every two months and to send the sampling cassettes to the MSHA lab, the annual MSHA samples are necessary to determine independently the dust level in the

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Deposition Uniformity of Coal Dust on Filters and Its ...

Deposition Uniformity of Coal Dust on Filters and Its ...Three types of 37mm plastic sample cassettes were chosen; 3piece, 2piece, and the approved (MSA/Zefon) tamperproof cassettes used for respirable dust sampling in coal mines. Using standard convention, the flow rate for the 2 and 3piece cassettes was lpm, and for the MSA cassettes lpm.

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MSHA Issues Final Coal Dust Rule | Coal Age

MSHA Issues Final Coal Dust Rule | Coal AgeDust samples, meanwhile, will now be mandated whenever mines operate at 80% of production — up from 50%; the new level, MSHA officials said, is "more representative of actual working conditions." "You shouldn't have to sacrifice your life for your livelihood," said Labor Secretary Thomas Perez, citing 1969's Coal .

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