 | 1913 - 1054 σελίδες
...designed size °r >ncr°tool will be used for taking portions or increments of 10 to 30 pounds of coal. For slack or small sizes of anthracite increments as small as 5 to 10 pounds may be taken. The size of the increments depends on the size and weight of the largest pieces of coal and impuritit... | |
 | Iowa Geological Survey - 1914 - 820 σελίδες
...specially designed tool will be used for taking portions or increments of 10 to 30 pounds of coal. For slack or small sizes of anthracite increments as small as 5 to 10 pounds may be taken. The size of the increments depends on the size and weight of the largest pieces of coal and impurities.... | |
 | 1916 - 1072 σελίδες
...tool or size of incremechanical means shall be used for taking equal portions or incre- mentsments. For slack or small sizes of anthracite, increments...the increments should be at least 10 to 30 pounds. 3. The increments shall be regularly and systematically collected, Collection of so that the entire... | |
 | H. S. B. W. Cochrane Corporation, Philadelphia - 1918 - 286 σελίδες
...specially designed tool or mechanical means shall be used for taking equal portions or increments. For slack or small sizes of anthracite, increments...the increments should be at least 10 to 30 pounds. 3. Collection of Gross Sample. — The increments shall be regularly and systematically collected,... | |
 | United States. Army. Quartermaster Corps - 1917 - 1252 σελίδες
...equal portions or increments of sufficient size to include the largest pieces of coa land impurities. For slack or small sizes of anthracite increments...to 10 pounds may be taken, but for run-of-mine or lumpcoal increments should be at least 10 to 30 pounds. The increments shall be regularly and systematically... | |
 | 1918 - 992 σελίδες
...specially designed tool, or mechanical means shall be used for taking equal portions or increments. For slack or small sizes of anthracite, increments as small as 5 to 10 Ib. may be taken, but for run-of-mine or lump coal, increments should be at least 10 to 30 Ib. 3. The... | |
 | Alfred Holmes White - 1920 - 348 σελίδες
...specially designed tool, or mechanical means shall be used for taking equal portions or increments. For slack or small sizes of anthracite, increments as small as 5 to 10 Ib. may be taken but for run-of-mine or lump coal, increments should be at least 10 to 30 Ib. 3. The... | |
 | Francis Rawle Wadleigh - 1921 - 196 σελίδες
...specially designed tool, or mechanical means shall be used for taking equal portions of increments. For slack or small sizes of anthracite, increments as small as 5 to 10 Ib. may be taken, but for run-of-mine or lump coal, increments should be at least 10 to 30 Ib. Collection... | |
 | 1921 - 936 σελίδες
...specially designed tool, or mechanical means shall be used for taking equal portions or increments. For slack or small sizes of anthracite, increments as small as 5 to 10 Ib. may be taken, but for run-of-mine or lump coal, increments should be at least 10 to 30 Ib. 3. The... | |
 | Francis Rawle Wadleigh - 1921 - 196 σελίδες
...specially designed tool, or mechanical means shall be used for taking equal portions of increments. For slack or small sizes of anthracite, increments as small as 5 to 10 Ib. may be taken, but for run-of-mine or lump coal, increments should be at least 10 to 30 Ib. Collection... | |
| |
... 3. The increments shall be regularly and systematically collected, so that the entire quantity of coal sampled will be represented proportionately in the gross sample, and with such frequency that a gross sample of the required amount shall be collected. 
