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" Ib. or more shall be collected. The gross sample should contain the same proportion of lump coal, fine coal, and impurities as is contained in the coal sampled. When coal is extremely lumpy, it is best to break a proportional amount of the lumps before... "
Handbook for Quartermasters: Pts. I to V.I. Administrative. II. Supply. III ... - Σελίδα 216
των United States. Army. Quartermaster Corps - 1930 - 1192 σελίδες
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Bulletin, Τεύχη 61-68

1913
...larger than three-quarters of an inch, a gross sample of approximately 600 pounds may prove sufficient. The gross sample should contain the same proportion of lump coal, fine coal, and impurities as is contained in the coal delivered. As the increments are collected, they will be deposited in a receptacle...

Annual Report for ... with Accompanying Papers, Τόμος 24

Iowa Geological Survey - 1914
...larger than three-quarters of an inch, a gross sample of approximately 600 pounds may prove sufficient. The gross sample should contain the same proportion of lump coal, fine coal, and impurities as is contained in the coal delivered. As the increments are collected, they will be deposited in a receptacle...

Bulletin

United States. Bureau of Mines - 1916 - 74 σελίδες
...pieces of such impurities are very large, a gross sample of 1,500 pounds or more shall be collected. The gross sample should contain the same proportion of lump coal, fine coal, and impurities as is contained in the coal sampled. When coal is extremely lumpy it is best to break a proportional amount...

Finding and Stopping Waste in Modern Boiler Rooms: A Reference Manual to Aid ...

H. S. B. W. Cochrane Corporation, Philadelphia - 1918
...pieces of such impurities are very large, a gross sample of 1,500 pounds or more shall be collected. The gross sample should contain the same proportion of lump coal, fine coal, and impurities as is contained in the coal sampled. When coal is extremely lumpy it is best to break a proportional amount...

Manual for the Quartermaster Corps, United States Army, 1916, Τόμος 2

United States. Army. Quartermaster Corps - 1917
...such impurities are very large, a gross sample of 1,500 pounds or more shall be colloct«d . The groas sample should contain the same proportion of lump coal, fine coal, and impurities as is contained in the coal sampled. Provision should be made for the preservation of the integrity of...

A Coal Manual for Salesmen, Buyers and Users

Francis Rawle Wadleigh - 1921 - 184 σελίδες
...the pieces of such impurities are very large, a gross sample of 1500 Ib. or more shall be collected. The gross sample should contain the same proportion of lump coal, fine coal, and impurities as is contained in the coal sampled. When coal is extremely lumpy, it is best to break a proportional...

A Coal Manual for Salesmen, Buyers and Users

Francis Rawle Wadleigh - 1921 - 184 σελίδες
...the pieces of such impurities are very large, a gross sample of 1500 Ib. or more shall be collected. The gross sample should contain the same proportion of lump coal, fine coal, and impurities as is contained in the coal sampled. When coal is extremely lumpy, it is best to break a proportional...

The Preparation of Reports, Engineering, Scientific, Administrative: A Text Book

Ray Palmer Baker - 1924 - 468 σελίδες
...are very large, a gross sample of 1,500 Ib. or more shall be 1 Series Designation: D21-16. collected. The gross sample should contain the same proportion of lump coal, fine coal, and impurities as is contained in the coal sampled. When coal is extremely lumpy, it is best to break a proportional...

Handbook for Quartermasters: Pts. I to V. I. Administrative. II. Supply. III ...

United States. Army. Quartermaster Corps - 1930 - 1192 σελίδες
...afforded only when the coal is leing transferred from one carrier to another — mine cars to railroad si Collection of gross sample. — Use a shovel for taking...collection of representative increments by shovel, break a'quantity of the lumps and collect portions, as .required, from the broken coal. Size of gross sample....

Standards and Specifications for Nonmetallic Minerals and Their Products ...

John Quayle Cannon - 1930 - 680 σελίδες
...pieces of such impurities are very large, a gross sample of 1,500 pounds or more shall be collected. The gross sample should contain the same proportion of lump coal, fine coal, and impurities as is contained in the coal sampled. When coal is extremely lumpy, it is best io break a proportional...




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