Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1913 to 1916 Page: III
This report is part of the collection entitled: Technical Report Archive and Image Library and was provided to UNT Digital Library by the UNT Libraries Government Documents Department.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
CONTENTS.
Page.
Sampling and analytical methods- ...... . --------............ e 1
Introduction............. ----------------------------------1
Acknowledgments ...........--------------------------------------------...... 2
Collection of samples ....................-- ----------------- ......... 2
Method of mine sampling followed by the Bureau of Mines........... 3
Collection of car samples---------------.................-....--------------------... 3
Method of sampling followed by the United States Geological Survey. 3
Relation of mine samples to commercial shipments- ...... --.---------....-.-. 4
Analytical methods............................-------------------------------------------. 5
Preparation of laboratory samples ........-.-- - ----......... 5
Determination of moisture ...............-----------------------------------6
Ash determination .......-----------------------------------------......... 6
Determination of volatile matter----........--. .- - --.-.---.... 6
Method ........................................----------------------------------------------.. 6
Modified method for lignites and subbituminous coals ..........- 8
"Use of the electric furnace .........--------------------------------.... 8
Determination of fixed carbon--.........-............ ......... 8
Sulphur determination........................-------------------------------------- 9
Determination of carbon and hydrogen-..............--......... -9
Nitrogen determination....................------------------------------------- 9
Determination of calorific value-----------............. ........ 9
Interpretation of analytical results-------..........--. - --- -......... 10
Proximate analysis........----------------------------------------......... 10
Moisture content......................-------------------------------------- 11
Ash.................------------------------------------------------......... 11
Inherent impurities.............................--------------------------------- 11
Extraneous impurities ......-------------------------------........ 12
Volatile matter and fixed carbon------...........- -......... 12
Sulphur------..........----------........-----------------------------.. 13
Forms of occurrence in coal------...........-......... 13
Ultimate analysis.....................----------------------------------------- 14
Calorific value...........................................-------------------------------------------. 14
Direct determination in the bomb calorimeter................... 14
Descriptions of samples-----------......................----------------------------- 15
Classification of coal.......................---------------------------------------. 15
Tabulated analyses.......................---------------------------------------------- 16
Alabama.........................--------------------------------------------------. 17
Bibb County.........................-------------------------------------------- 17
Dekalb County.......................-------------------------------------------. 18
Jefferson County ......................----------------------------------------- 18
St. Clair County......................------------------------------------------. 22
Shelby County.....................------------------------------------------- 22
Tuscaloosa County.....................---------------------------------------- 23
Walker County.................................------------------------------------------. 23
III
Upcoming Pages
Here’s what’s next.
Search Inside
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Fieldner, Arno C.; Smith, Howard I.; Paul, J. W. & Sanford, Samuel. Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1913 to 1916, report, 1918; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc12329/m1/3/: accessed April 22, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.