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" 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.... "
A Coal Manual for Salesmen, Buyers and Users - Σελίδα 38
των Francis Rawle Wadleigh - 1921 - 184 σελίδες
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Bulletin

United States. Bureau of Mines - 1916 - 74 σελίδες
...Collection of so that the entire quantity of coal sampled will be represented pro- gross samPleportionately in the gross sample, and with such frequency that...collected. The standard gross sample shall not be less than 1 ,000 pounds, except that for slack coal and small sizes of anthracite in which the impurities do...

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

H. S. B. W. Cochrane Corporation, Philadelphia - 1918
...Collection of Gross Sample. — The increments shall be regularly and systematically collected, so that the entire quantity of coal sampled will be represented...collected. The standard gross sample shall not be less than 1,000 pounds, except that for slack coal and small sizes of anthracite in which the impurities do not...

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

United States. Army. Quartermaster Corps - 1917
...least 10 to 30 pounds. The increments shall be regularly and systematically collected, so that the entire quantity of coal sampled will be represented...collected. The standard gross sample shall not be lees than 1,000 pounds, except t hat for slack coal and small elzes of anthracite in which the impurities...

American Fuels ...

Raymond Foss Bacon, William Allen Hamor - 1922 - 1257 σελίδες
...increments should be regularly and systematically collected so that the entire quantity of coke samples will be represented proportionately in the gross sample,...sample of the required amount shall be collected. The weight of the gross sample to be taken will depend upon the size of the material to be sampled and...

The Preparation of Reports: Engineering, Scientific, Administrative; a Text Book

Ray Palmer Baker - 1923 - 468 σελίδες
...regularly and systematically collected, so that the entire quantity of coal sampled will be o ec 1ons o represented proportionately in the gross sample, and...collected. The standard gross sample shall not be less than 1,000 Ib., except that for slack coal and small sizes of anthracite, in which the impurities do not...

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

Ray Palmer Baker - 1924 - 468 σελίδες
.... , , represented proport1onately 1n the gross sample, and Gross Sample ... , , .. . ' . . .. w1th such frequency that a gross sample of the required...collected. The standard gross sample shall not be less than 1,000 Ib., except that for slack coal and small sizes of anthracite, in which the impurities do not...

NBS Special Publication, Τεύχος 110

1930
...D21. (See 501.0, p. 4.) The increments shall be regularly and systematically collected, so that the entire quantity of coal sampled will be represented...sample of the required amount shall be collected. (6) In case it is necessary to collect the sample from the exposed surface of the car, at least nine...

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

John Quayle Cannon - 1930 - 680 σελίδες
...D21. (See 501.0, p. 4.) The increments shall be regularly and systematically collected, so that the entire quantity of coal sampled will be represented...sample of the required amount shall be collected. (6) In case it is necessary to collect the sample from the exposed surface of the car, at least nine...

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

United States. Army. Quartermaster Corps - 1930 - 1192 σελίδες
...coal and impurities being sampled. Collect the increments regularly and systematically, so that the entire quantity of coal sampled will be represented proportionately in the gross sample, and collect them at such intervals that the gross sample will be of the required size. The gross sample...

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

United States. Army. Quartermaster Corps - 1930 - 1192 σελίδες
...coal and impurities being sampled. Collect the increments regularly and systematically, so that the entire quantity of coal sampled will be represented proportionately in the gross sample, and collect them at such intervals that the gross sample will be of the required size. The gross sample...




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