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" ... represented proportionately in the gross sample, and with such frequency that a gross sample of the required amount shall be collected. The standard gross sample shall not be less than... "
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

United States. Bureau of Mines - 1916 - 74 σελίδες
...amount shall be 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 exist in abnormal quantities or in pieces larger than J inch, a gross sample of approximately...

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

H. S. B. W. Cochrane Corporation, Philadelphia - 1918
...amount shall be 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 exist in abnormal quantities or in pieces larger than % inch, a gross sample of approximately...

Technical Gas and Fuel Analysis

Alfred Holmes White - 1920 - 319 σελίδες
...required amount shall be collected. The standard gross sample shall not be less than 1000 Ib. except that for slack coal and small sizes of anthracite in which the impurities do not exist in abnormal quantities or in pieces larger than y± in., a gross sample of approximately...

A Coal Manual for Salesmen, Buyers and Users

Francis Rawle Wadleigh - 1921 - 184 σελίδες
...required amount shall be collected. The standard gross sample shall not be less than 1000 Ib., except that for slack coal and small sizes of anthracite in which the impurities do not exist in abnormal quantities or in pieces larger than % in., a gross sample of approximately...

A Coal Manual for Salesmen, Buyers and Users

Francis Rawle Wadleigh - 1921 - 184 σελίδες
...required amount shall be collected. The standard gross sample shall not be less than 1000 Ib., except that for slack coal and small sizes of anthracite in which the impurities do not exist in abnormal quantities or in pieces larger than % in., a gross sample of approximately...

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

Ray Palmer Baker - 1923 - 468 σελίδες
...amount shall be 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 exist in abnormal quantities, or in pieces larger than J4 inch, a gross sample of approximately...

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

United States. Army. Quartermaster Corps - 1930 - 1192 σελίδες
...extremely lumpy, making difficult the collection of representative increments by shovel, break a'quantity of the lumps and collect portions, as .required, from...of 1 ton, 500 tons, or more, the need of the gross (•ample being of the sizes stated is the same. Quantity represented by a gross sample. — The number...

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

John Quayle Cannon - 1930 - 680 σελίδες
...amount shall be 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 exist in abnormal quantities or in pieces largei than three-fourths inch, a gross sample of...

NBS Special Publication, Τεύχος 110

1930
...amount shall be 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 exist in abnormal quantities or in pieces largei than three-fourths inch, a gross sample of...

Heating, Ventilating, Air Conditioning Guide, Τόμος 3

1924
...and quartering, two one-pint glass jars or other airtight vessels shall be filled. The gross sample for slack coal and small sizes of anthracite in which the impurities do not exist in abnormal quantities or in pieces larger than % in., should weigh approximately 500...




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