Protection factors of the airstream helmet /

Evaluation of the penetration characteristics of a horizontal plate elutriator and of a 10-mm nylon cyclone elutriator /
by: Tomb, Thomas F.
Published: (1970)

A breathing metabolic simulator for testing respiratory protective equipment /
by: Sparks, Anthony W.
Published: (1980)

Effects of humidity on salt mine dust : a preliminary report /
by: Volkwein, J. C. (Jon C.)
Published: (1980)

Precision of personal sampling of respirable dust in coal mines /
by: Breslin, John A.
Published: (1983)

Canopy-air curtain dust reductions on a gathering-arm loader /
by: Volkwein, J. C. (Jon C.)
Published: (1981)

Laboratory evaluation of the Leitz Tyndallometer TM-Digital /
by: Tomb, Thomas F.
Published: (1977)

Coal dust explosibility meter evaluation and recommendations for application /
by: Harris, Marcia L.
Published: (2012)

4 quarters of football helmet safety, coaches & parents = 4 cuartos sobre del los cascos de fútbol Americano, padres y entrenadores.
Published: (2012)

Field testing the microminer--research continuous miner /
by: Johnson, Bradley V., et al.
Published: (1975)

Effectiveness of wet cutter bars in reducing salt mine dust /
by: Page, Steven J.
Published: (1980)

Reducing dust at longwall shearers by confining the dust cloud to the face /
Published: (1981)

High-pressure shrouded water sprays for dust control /
Published: (1981)

Scrubbers for dust control : a comparison of six medium-energy use types /
by: Divers, Edward F.
Published: (1980)

A report on the performance of firefighters' helmets /
by: Cook, William I.
Published: (1976)

Three Bureau of Mines optical dust probes /
by: Cashdollar, Kenneth L.
Published: (1981)

Effect of asymmetric wear of point attack bits on coal-cutting parameters and primary dust generation /
by: Roepke, Wallace W.
Published: (1983)

Inhibition and extinction of coal dust and methane explosions /
Published: (1982)

Suppression of coal dust explosion by water barrier in a conveyor belt entry /
by: Liebman, I. (Israel)
Published: (1981)

Reducing longwall tailgate workers' dust exposure utilizing water-powered scrubbers /
by: Organiscak, John A.
Published: (1983)

Dust protection afforded by enclosed cabs on surface and underground mine machinery /
by: Volkwein, J. C. (Jon C.)
Published: (1979)

Effect of depth of cut and bit type on the generation of respirable dust /
by: Strebig, Kelly C., et al.
Published: (1975)

Minimizing respirable dust exposure in enclosed cabs by maintaining cab integrity.
Published: (2008)

The impact attenuating capabilities of new and used ice hockey helmets /
by: Monroe, Melanie
Published: (2001)

A microseismic system for monitoring slope stability /
by: Lepper, C. Melvin
Published: (1982)

The M-1 helmet : a history of the U.S. M-1 helmet in World War II /
by: Reynosa, Mark A., 1967-
Published: (1996)

Constructing ventilation bulkheads with shotcreted wire panel /
by: Dorman, K. Robert
Published: (1980)

Laboratory testing of the CSE SR-100 self-contained self-rescuer for ruggedness and reliability /
Published: (1990)

Optical rock dust meter field evaluation /
by: Sapko, M. J.
Published: (1991)

Safety helmets : cycle and motorcycle update, 1994-1997.
Published: (1997)

Evaluation of the seismic system for locating trapped miners /
by: Durkin, John
Published: (1981)

Electromagnetic surface fields due to a magnetic dipole buried in a three-layered earth /
by: Shope, S. M. (Steven M.)
Published: (1982)

The Effect of water vapor and water droplets on the RAM-1 (preliminary results) /
Published: (1984)

SF tracer gas tests of bagging-machine hood enclosures /
by: Vinson, Robert P.
Published: (1981)

Motorcycle helmets approved in Texas.
Published: (1980)

Anion characterization of Florida phosphate rock mining materials and U.S. cement kiln dust by ion chromatography /
by: Kramer, Gary W.
Published: (1982)

Investigation of longwall gateroad roof support characteristics of Powhatan no. 4 mine : instrumentation plan /
by: Chekan, G. J. (Gregory J.)
Published: (1982)