topsize

n
the opening of the smallest screen in the series upon which is retained less than 5 % of the sample (see Test Method D4749). D2013; D2234/D2234M; D4916

ASTM D121-09a Standard Terminology of Coal and Coke. 2014.

Look at other dictionaries:

  • nominal topsize — for the purpose of Test Method D4749, the sieve designating the upper limit or topsize shall be that sieve of the series given in the Standard Series of Sieves section with the smallest openings upon which is cumulatively retained a total of less …   Coke&Coal Terminology

  • Coal preparation plant — A coal washer in Eastern Kentucky A coal preparation plant (CPP) is a facility that washes coal of soil and rock, preparing it for transport to market. A CPP may also be called a coal handling and preparation plant (CHPP), prep plant, tipple, or… …   Wikipedia

  • D2961 — ASTM Standard D2961 Test Method for Single Stage Total Moisture Less than 15 % in Coal Reduced to 2.36 mm (No. 8 Sieve) Topsize …   Coke&Coal Terminology

  • prepared coal — for the purpose of Test Method D4749, any coal, regardless of its topsize, that has been manually or mechanically cleaned. This includes coal that has been processed over a picking table or air tables through a breaker, jig, or other device which …   Coke&Coal Terminology

  • raw coal — for the purpose of Test Method D4749, any coal, regardless of its topsize, that has not been manually or mechanically cleaned. Crushed coal that has not been mechanically cleaned (including coal that has not been through a breaker which normally… …   Coke&Coal Terminology

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