Dust Sampling Instrumentation and Methods

28-9-2010· Dust Sampling Instrumentation and Methods Jay Colinet Office of Mine Safety and Health Research Senior Scientist National Institute for Occupational Safety and Health (NIOSH) Silica Dust Control Workshop . Elko, Nevada . September 28, 2010

Development of a Mine Dust Sampling Instrument for use in ...

Keywords: Mine Dust, Coal, Dust Sampling, Dust Testing 1. Introduction Underground coal mines face the danger of methane and coal dust explosions. The disaster at Upper Big Branch Mine (2010) has demonstrated the impact of a violent coal dust explosion that fatally injured 29 miners. Reviewing the history of coal dust explosions,

(PDF) Development of a Mine Dust Sampling Instrument …

Development of a Mine Dust Sampling Instrument for use in Underground Coal Mines Conference Paper (PDF Available) · June 2015 with 190 Reads How we measure 'reads'

Airway inflammation in iron ore miners exposed to dust …

The aim of the present study was to investigate if underground miners exposed to dust and diesel exhaust in an iron ore mine would show signs of airway inflammation as reflected in induced sputum. In total, 22 miners were studied, once after a holiday of at least 2 weeks and the second time after 3 months of regular work. Control subjects were 21 “white-collar” workers.

Pneumatic Mine Dust Sampling Instrument - Today at Mines

Pneumatic Mine Dust Sampling Instrument Kamran Bakhsh, Sean McDaniel, Tyler Rockley, Benjamin Goertz, and Juergen Brune Summary: A hand-held coal and rock dust sampling devise suited to collect consistent mine dust samples Description: Mine dust in underground coal mines is potentially explosive and must be sampled regularly.

Lowering Respirable Dust at an Iron Ore Concentrator Plant ...

Gravimetric dust sampling packages and PDR in-stantaneous dust sampling devices will be discussed, followed by the two types of instruments used for measuring air velocity. Gravimetric dust sampling packages consisted of two sampling units, each containing a sampling pump, flexible tygon tubing, a respirable dust classi-fier, and a filter.

(PDF) Reconciling PM10 analyses by different sampling ...

40 Li et al.: Reconciling PM 10 analyses b y different sampling methods for Iron King Mine t ailings dust M T : mass of material from tailing s PM 10 M Ni : mass of back ground materials from ...

PNEUMATIC MINE DUST SAMPLING INSTRUMENT - …

27-4-2017· Mine dust in underground coal mines is potentially explosive and must be sampled and tested for sufficient inert content regularly. The present invention comprises a pneumatic mine dust sampling instrument equipped with a specially designed nozzle arrangement that delivers a controlled pulse of air which entrains the mine dust, similar to the entrainment process that happens during a mine ...

Comparative Field Study on Dust Measurements by …

Sampling was conducted in 15 industries: 3 tungsten mines, 4 iron/copper mines, 2 tin mines, 3 pottery factories, 2 foundry factories, and 1 factory for refractory bricks, located in four provinces of China from 2000 to 2009. The sampling method was similar to that of the 1988–1989 investigation in order to compare the results.

Reported dust concentrations in underground gold mines

1.3 Changes in the methods of dust sampling 8 1.4 The role of the mine Occupational Hygienist 9 1.5 Research objectives 10 CHAPTER TWO: MATERIALS AND METHODS 11 2.1 Mine selection criteria 11 2.2 Dust measuring methodology 12 2.2.1 Sampling strategy 12 2.2.1.1 Area classification, ventilation districts and HEGs 12

Comparative Field Study on Dust Measurements by …

Sampling was conducted in 15 industries: 3 tungsten mines, 4 iron/copper mines, 2 tin mines, 3 pottery factories, 2 foundry factories, and 1 factory for refractory bricks, located in four provinces of China from 2000 to 2009. The sampling method was similar to that of the 1988–1989 investigation in order to compare the results.

(PDF) Reconciling PM10 analyses by different sampling ...

40 Li et al.: Reconciling PM 10 analyses b y different sampling methods for Iron King Mine t ailings dust M T : mass of material from tailing s PM 10 M Ni : mass of back ground materials from ...

Estimating historical respirable crystalline silica ...

1-11-2001· The average Chinese total dust concentrations were 6.1, 5.1, 2.9, and 1.9 mg/m 3 for iron copper mines, pottery factories, tin mines, and tungsten mines, respectively. The Chinese total dust concentrations were found to exceed the Chinese total dust standard of …

A Comparative Field Study on Dust Measurements by ...

Sampling instrument Dust samplers (Model FC-2; Wuhan Analytical Instrument Company, Wuhan, China) were used to collect Chinese total dust. The sampler, with a 40-mm filter of polytetrachloroethylene, was operated generally at a flow rate of 25 l min 1 for a period of 15 min while working tasks were in progress.

Use of dust fall filters as passive samplers for metal ...

28-5-2014· In a previous publication, we discussed how house dust and soil ratios could be used to prioritize metals for future air quality investigations and delineate those metals that primarily arise from outdoor soil from those that have other indoor sources. 26 House dust and soil were collected at the same time and in the same homes as our concurrent active and passive air sampling near Saginaw Hill.

Introduction - Monitoring and Sampling Approaches to ...

RESPIRABLE COAL MINE DUST: CONSTITUENTS AND SOURCES. RCMD comprises the size fraction of airborne particles in underground mines that can be inhaled by miners and deposited in the distal airways and lung gas-exchange region ().The 2014 dust rule states, “Any respirable dust in the mine atmosphere is considered respirable coal mine dust to which miners are exposed and, when …

Dust Monitoring - OHSA Occupational Health Services …

Dust monitoring programs should ensure a reasonable representation of the dust exposure for given activities and the work site. Programs should be reviewed every two years and appropriate changes made if programs are inadequate for intended purposes. Dust Sampling. Airborne dust samples may be either static or personal.

MSHA: INTRODUCTION TO OPERATOR AIR SAMPLING …

INTRODUCTION TO OPERATOR AIR SAMPLING PROGRAMS. by Doris A. Cash. Health Division Metal and Nonmetal Mine Safety and Health 4015 Wilson Blvd Arlington, VA 22203 . BACKGROUND. Exposure to respirable silica-bearing dust (silica dust) can put miners at grave risk.

Certification Sampling for Respirable Coal Mine Dust

8. The respirable coal mine dust standard in the United States is based in part on the British dust sampling instrument known as the _____ . a. impinger b. precipitator c. MRE d. grit pot 9. An MMU identification number looks most like _____. a. 002-0 b. 00-20 c. 0-020 d. 0020 10. A DWP identification number looks most like _____. a. B45-1 b. 001-0

Automatic Ore Sampling Systems

Size C, Sampling-Machine.—This gives laboratory samples for all small work. Mixer and Divider.—This performs the final preparation and distribution of the assay-samples. Ore Sampling System A. This machine occupies a floor-space of 3 by 4 feet, and has a total height of 7 feet 6 inches.

Evaluation of gravimetric sampler bias, effect on measured ...

1-5-2019· The mass of respirable dust inhaled can be determined by sampling. The measurement of dust in mines is usually carried out using various gravimetric sampling instruments. For personal coal mine dust sampling, the dust sampler or cyclone is normally mounted on the upper chest, close to the collarbone within the breathing zone .

Estimating historical respirable crystalline silica ...

1-11-2001· The average Chinese total dust concentrations were 6.1, 5.1, 2.9, and 1.9 mg/m 3 for iron copper mines, pottery factories, tin mines, and tungsten mines, respectively. The Chinese total dust concentrations were found to exceed the Chinese total dust standard of …

A Comparative Field Study on Dust Measurements by ...

Sampling instrument Dust samplers (Model FC-2; Wuhan Analytical Instrument Company, Wuhan, China) were used to collect Chinese total dust. The sampler, with a 40-mm filter of polytetrachloroethylene, was operated generally at a flow rate of 25 l min 1 for a period of 15 min while working tasks were in progress.

Dust Monitoring - OHSA Occupational Health Services …

Dust monitoring programs should ensure a reasonable representation of the dust exposure for given activities and the work site. Programs should be reviewed every two years and appropriate changes made if programs are inadequate for intended purposes. Dust Sampling. Airborne dust samples may be either static or personal.

Dust sampler - instrumentstrade.com

Dust sampler,,Analytical instruments,Drug testing instrument,X ray fluorescence thickness gauge,Ion sputtering apparatus,Sulfur dioxide detector,Ash melting point measuring instrument,Physical property test,Granule/powder analysis instrument,Oil special analytical instrument,On-line thickness gauge,Ion reducing instrument,Osmotic pressure gauge,Sulfur analyzer,Environmental monitoring and ...

3-Colinet-DustSampling.pdf - Dust Sampling …

View 3-Colinet-DustSampling.pdf from MECHANICAL 321 at International Islamic University, Islamabad. Dust Sampling Instrumentation and Methods Jay Colinet Office of Mine Safety and Health

CHAPTER 1: CONTAMINANTS - Oregon

Section II / Chapter 1 - Page 2 SECTION II: CHAPTER 1 PERSONAL SAMPLING FOR AIR CONTAMINANTS Chapter Revision Information: This chapter was previously identified as Section 1, Chapter 1 in Oregon OSHA’s circa 1996 Technical Manual.The Section number

Recognised Standard 05

• sampling methods for roadway dust • methods of analysis of roadway dust. 2. Scope This standard applies underground coal mines.to 3. Application framework Accumulations of fine coal dust within underground mine roadways have the potential to propagate

for sampling dust. This miethod was adopted in 1917 by the ...

Duiring the couirse of the study, a new instrument, the impinger, for the sampling of dust, was devised by one of the authors and G. W. Smith, then of the United States Buireau of Mines.8 This new instrLument was incluided in the later stages of the laboratory study of dust-sampling instruments described in the report published as

Certification Sampling for Respirable Coal Mine Dust

8. The respirable coal mine dust standard in the United States is based in part on the British dust sampling instrument known as the _____ . a. impinger b. precipitator c. MRE d. grit pot 9. An MMU identification number looks most like _____. a. 002-0 b. 00-20 c. 0-020 d. 0020 10. A DWP identification number looks most like _____. a. B45-1 b. 001-0