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Determination of the Oxides of Nitrogen by the Phe...
作者
Robert L. Beatty / Lawrence Bursley Berger / Helmuth Herman Schrenk
出版1943
ISBN
UOM:39015078491670
主題
Nitrogen oxides
Some Photometric Instruments Used in X-ray Diffrac...
作者
James W. Ballard / Howard I. Oshry / Helmuth Herman Schrenk
出版1942
ISBN
UOM:39015078493965
主題
Spectrum analysis
List of Respiratory Protective Devices Approved by...
作者
Helmuth Herman Schrenk
出版1941
ISBN
UOM:39015077575994
主題
Breathing apparatus
Relation Between and Precision of Dust Counts (lig...
作者
Carlton Ernest Brown / Helmuth Herman Schrenk
出版1949
ISBN
UOM:39015078486449
主題
Dust
Diesel Engines Underground
作者
Martin A. Elliott / John C. Holtz / Lawrence Bursley Berger / Helmuth Herman Schrenk
出版1941
ISBN
UOM:39015078495515
主題
Diesel motor exhaust gas
Benzene in Natural Gas
作者
Helmuth Herman Schrenk / William Parks Yant / S. J. Pearce
出版1935
ISBN
UOM:39015077563503
主題
Benzene
Determination by the Dropping-Mercury-electrode Pr...
作者
Florence L. Feicht / Carlton E. Brown / Helmuth Herman Schrenk
出版1942
ISBN
UOM:39015078493957
主題
Electrodes
Quantitative Analysis by X-ray Diffraction
作者
James W. Ballard / H. I. Oshry / Helmuth Herman Schrenk
出版1940
ISBN
UOM:39015078491902
主題
Quartz
Use of Respiratory Protective Devices Under Abnorm...
作者
Franklin E. Griffith / Helmuth Herman Schrenk
出版1940
ISBN
UOM:39015078491860
主題
Breathing apparatus
List of Respiratory Protective Devices Approved by...
作者
Helmuth Herman Schrenk
出版1943
ISBN
UOM:39015074126916
主題
Breathing apparatus
Determination of Sulfur Dioxide in Air by Means of...
作者
S. J. Pearce / Helmuth Herman Schrenk
出版1948
ISBN
UOM:39015078468645
主題
Air
The "carbon-oxygen Complex" as a Possible Initiato...
作者
H. W. Busch / Lawrence Bursley Berger / Helmuth Herman Schrenk
出版1949
ISBN
UOM:39015078491241
主題
Carbon
Laboratory Equipment for the Analysis of Mine Atmo...
作者
Lawrence Bursley Berger / Helmuth Herman Schrenk
出版1948
ISBN
UOM:39015077577461
主題
Mine gases
Air Pollution in Donora, Pa
作者
Helmuth Herman Schrenk
出版1949
ISBN
MINN:31951000380555Z
主題
Air
Methods for the Detection and Determination of Car...
作者
Lawrence Bursley Berger / Helmuth Herman Schrenk
出版1938
ISBN
UOM:39015078485375
主題
Carbon monoxide
Control of Silicosis Hazard by Substitution of Qua...
作者
Carlton E. Brown / Helmuth Herman Schrenk
出版1944
ISBN
UOM:39015074127203
主題
Coal miners
A Procedure for the Removal and Determination of S...
作者
William Parks Yant / P. H. Mautz / Helmuth Herman Schrenk
出版1935
ISBN
UOM:39015077563669
主題
Benzene
Selection, Use, and Maintenance of Respiratory Pro...
作者
Helmuth Herman Schrenk / S. J. Pearce
出版1943
ISBN
UOM:39015074126965
主題
Breathing apparatus
Testing Respiratory Protective Equipment for Appro...
作者
Helmuth Herman Schrenk
出版1940
ISBN
UOM:39015078534362
主題
Breathing apparatus
Bureau of Mines Midget Impinger
作者
Helmuth Herman Schrenk / Florence L. Feicht
出版1939
ISBN
UOM:39015077570474
主題
Dust
Control of Dust from Blasting by a Spray of Water ...
作者
Carlton E. Brown / Helmuth Herman Schrenk
出版1938
ISBN
UOM:39015078491324
主題
Coal mines and mining
Official Changes in the Active List of Permissible...
作者
Charles Holmes Herty / A. J. Kraemer / A. U. Miller / Arno Carl Fieldner / Charles Wesley Davis / Clarence Watson Owings / F. D. DeVaney / G. W. Jones / George Samuel Rice / Gordon Ray Hopkins / Harry Blackburn Hill / Helmuth Herman Schrenk / Henry Alfred Doerner / Henry Herman Storch / John D. Sullivan / John Gross / Joseph Chalmers / L. B. Berger / N. A. Tolch / R. L. Marek / Scott Turner / William Parks Yant / Alfred P. Towne / E. V. H. Bauserman / G. L. Oldright / G. St. J. Perrott / Harold Putnam Greenwald / J. B. Clemmer / J. E. Conley / S. R. Zimmerley / W. A. Selvig / W. H. Coghill / C. B. Carpenter / F. A. Patty / Henry C. Howarth / M. B. Royer / W. E. Keck / W. H. Frederic
出版1930
ISBN
OSU:32435067622373
主題
Air
Relation of Dust Dissemination to Water Flow Throu...
作者
Carlton E. Brown / Helmuth Herman Schrenk
出版1938
ISBN
UOM:39015095092238
主題
Jackhammers
A Microcolorimetric Method for the Determination o...
作者
William Parks Yant / S. J. Pearce / Helmuth Herman Schrenk
出版1936
ISBN
UOM:39015078518365
主題
Toluene
A Technique for Use of the Impinger Method
作者
Carlton E. Brown / Helmuth Herman Schrenk
出版1938
ISBN
UOM:39015077575572
主題
Coal mines and mining
The Reaction of Selenious Acid with Inorganic Oxid...
作者
Helmuth Herman Schrenk
出版1928
ISBN
WISC:89092587948
Petrographic Identification of Atmospheric Dust Pa...
作者
Wilder DeAyre Foster / Helmuth Herman Schrenk
出版1938
ISBN
UOM:39015078518514
主題
Air
Microcolorimetric Determination of Benzene in Bloo...
作者
S. J. Pearce / Helmuth Herman Schrenk / William Parks Yant
出版1936
ISBN
UOM:39015078536789
主題
Benzene
A Microcolorimetric Method for the Determination o...
作者
Helmuth Herman Schrenk / S. J. Pearce / William Parks Yant
出版1935
ISBN
UOM:39015077563685
主題
Benzene
Testing and Design of Respiratory Protective Devic...
作者
Helmuth Herman Schrenk
出版1939
ISBN
UOM:39015078534842
主題
Breathing apparatus