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  • NIOSH
    RI 3481 Bureau Of Mines - A.P.I. Pressure Core Barrel (Progress Report On Its Design And Development) ? Introduction

    By D. B. Taliaferro

    [Recovery of core specimens from subsurface formations and their subsequent analysis are important aids in efficient development and operation of oil and gas fields. Core specimen first were obtained

    Jan 1, 1939

  • NIOSH
    Bulletin 186 Investigations of Zirconium with Especial Reference to the Metal and Oxide

    By J. W. Thompson, M. N. RICH

    That there is wide interest in the preparation and properties of metallic zirconium and its salts is indicated by the many articles recently published in scientific and technical journals and the many

    Jan 1, 1921

  • NIOSH
    RI 6741 The Mass Spectra And Correlations With Structure For 2-t-Butyl-, 3-t-Butyl-, 2,5-di-t-Butyl-, And 2,4-di-t-Butylthiophenes

    By Norman G. Foster

    The mass spectra of four tertiary butyl substituted thiophenes are reported. A comparison and contrast with earlier structure correlations made by API-RP48 mass spectroscopists is presented. The fragm

    Jan 1, 1966

  • NIOSH
    OFR-146-80 Environmental Effects Of Slaking Of Surface Mine Spoils Eastern & Central United States

    By D. E. Andrews

    The objective of this study was to investigate the environmental effects of slaking of surface mine spoils. To accomplish this, both field and laboratory programs were undertaken, supplemented by a th

    Jan 1, 1980

  • NIOSH
    RI 3498 Hydrogenation & Petrography of Some Low Coals from the Western United States

    By C. H. Fisher, M. L. Fein, A. Eisner, G. C. Sprunk, Loyal Clarke, H. H. Storch

    "The large reserves of low-rank coals in the western United States are at a disadvantage in competing with the more mature but less plentiful eastern coals, which are nearer important markets and are

    Mar 1, 1940

  • NIOSH
    OFR-55-77 Remote Sealing Operations - 1. Introduction

    By David A. Monaghan

    On January 14, 1974 a fire occurred in the 3 East mains of the Joanne Mine of Eastern Associated Coal Corp. in Rachel, West Virginia. The mine was evacuated without injury and sealed completely at the

    Jan 1, 1975

  • NIOSH
    The Role of ASTM E27 Methods in Hazard Assessment Part II: Flammability and Ignitability

    By Laurence G. Britton

    Accurate flammability and ignitability data for chemicals form the cornerstone of procedures used to assess the hazards associated with commercial chemical production and use. Since 1967 the ASTM E27

    Jan 1, 2005

  • NIOSH
    OFR-164-82 Engineering Evaluation Of Radon Daughter Removal Techniques

    By Donald B. Lindsay

    This report presents the findings of an investigation into the characteristics of a number of techniques for cleaning ambient air with special emphasis on their applicability to the removal of the sho

    Jan 1, 1978

  • NIOSH
    RI 2107 Features of the Colombian Petroleum Law

    By J. W. Thompson

    "The Republic of Colombia on December 30, 1919, enacted a new petroleum law. The Act is expressly limited to mineral oil, natural gas, bitumen, wax and fossilized resin and to asphalt intended for exp

    Apr 1, 1920

  • NIOSH
    RI 4413 Estimated Cost Of Producing Heavy Fuel Oil By Hydrogenation Of Coal

    By L. L. Hirst

    Liquid fuel oils possess certain advantages over solid fuels. Ease in handling, precision temperature control, and almost complete freedom from ash are among those considered when a liquid fuel is sel

    Jan 1, 1948

  • NIOSH
    RI 9467 - Improved 6.8L Furnace for Measuring the Autoignition Temperatures of Dust Clouds

    By Ronald S. Conti

    A new U.S. Bureau of Mines 6.8-L ignitability furnace was used to study the thermal autoignitability of dust clouds. This furnace has a quartz window to allow observation of the early stages of the ig

    Jan 1, 2010

  • NIOSH
    Bulletin 222 Metallurgy of Quicksilver (Mercury)

    By L. H. Duschak, C. N. Schuette

    In the years 1850 to 1923, the United States produced 2,426,000 flasks- (73,600 metric tons) of quicksilver worth $120,500,000. California yielded 2,195,000 flasks of this total; the remainder came fr

    Jan 1, 1925

  • NIOSH
    RI 6632 Spectrochemical Analysis Of Tungsten

    By Jr. Gabler

    Methods for the direct spectrochemical determination of impurities at the parts-per-million level in tungsten metal and oxide are presented. Several published procedures were investigated and numerous

    Jan 1, 1965

  • NIOSH
    Contributions To The Data On Theoretical Metallurgy - VII. The Thermodynamic Properties Of Sulphur And Its Inorganic Compounds ? Introduction

    By K. K. Kelley

    This work is a continuation of a program of study of the measurement and correlation of fundamental thermodynamic data inaugurated several years ago by the United States Bureau of Mines. Previous bull

    Jan 1, 1937

  • NIOSH
    IC 8262 Minerals And The New Tariff Schedules Of The United States (79cf7965-2ea1-4aab-b42e-09b507efdf4d)

    The Bureau of Mines has reviewed those portions of the "Tariff Schedules of the United States Annotated 1963" that are of interest to the minerals industry. This study shows to what extent rates of du

    Jan 1, 1965

  • NIOSH
    The Mineral Industry Of Central American Countries - Belize (418cfd36-f0dc-46ed-856d-f40ae3a05c16)

    By Doris M. Hyde

    The Government of Belize maintained strict control over spending in 1982 as a means of protecting its import-dependent economy against the effects of a general worldwide recession. The modest economic

    Jan 1, 1984

  • NIOSH
    Investigation Of Fire And Explosion Accidents In The Chemical, Mining, And Fuel- Related Industries - A Manual

    By Joseph M. Kuchta

    This Bureau of Mines manual is oriented to the technical needs of an investigation of fire or explosion accidents and includes various practical and theoretical information that is needed in analyzing

    Jan 1, 1985

  • NIOSH
    OFR-184-82 The Effects Of Moisture On Radon Emanation - Including The Effects On Diffusion

    By Burton J. Thamer

    Radon emanation coefficients of 0.02 to 0.55 were measured at moisture contents ranging from dry to saturation in eighteen different ores. The emanation coefficients rose from a minimum when dry to a

    Jan 1, 1981

  • NIOSH
    RI 5435 The International Systems Of Hard-Coal :Classification And Their Application To American Coals ? Introduction And Summary

    By W. H. Ode

    In 1949 the Coal Committee of the Economic Commission for Europe, Geneva, Switzerland, established a Classification Working Party, to develop an international system for classifying coal. This project

    Jan 1, 1958

  • NIOSH
    IC 6964 Reconnaissance Of Mining Districts In Clark County, Nev. ? Introduction

    By William O. Vanderburg

    This paper 3/gives the results of a reconnaissance of mining districts in Clark County, Nev., made from November 18 to December 22, 1936, and from February 9 to March 8, 1937-in all, 63 days. While th

    Jan 1, 1937