Filter sand definition

Filter sand means a specially graded type of permanent filter media.
Filter sand means clean, washed, screened or natural sand having less than 10% by weight retained on a 10 mm (3/8 in) sieve and less than 2% by weight passing a 0.075 mm (#200 US std.) sieve and the permeability of the sand must be not less than 0.0004 m/s (0.0013 ft/s);
Filter sand means a type of filter media.

Examples of Filter sand in a sentence

  • Filter sand shall be clean sand, free of organic materials and fines, with an effective grains size of 0.20 to 0.55 mm, uniformity coefficient of 1.5 to 4.0, a K value (recommended design permeability) not to exceed 2.5 ft/hr, and the contractor shall provide a grain-size analysis to the County for the project.PART 3 - EXECUTION 3.1 STANDARD INSTALLATION: A.

  • Filter sand shall conform to ASTM C-33, with less than two percent (2%) passing through the #200 sieve.

  • Filter sand shall be placed on graded gravel layers for a minimum depth of 30 inches.

  • Examination of affairs of Company by Inspectors appointed by the local Government.

  • Filter sand, green sand, ion exchange media, membranes, support media, and other media that may retain radionuclide material shall be evaluated when treating water with radium−226, radium−228, or uranium.

  • Filter sand shall be hard angular silicon material free of carbonates or other foreign material.

  • Filter sand was placed in the annular space at the sampling depth, and bentonite was utilized to seal the annular space between sampling depths.

  • DWW staff will review the draft and may request some edits or clarifications.

  • Filter sand must be placed on graded gravel layers for a minimum depth of 30 inches.

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More Definitions of Filter sand

Filter sand means the fine fraction of plant aggregate. It is a ground and washed sand (typical size minus-10 mesh) that has been cycloned, hydroseparated and then filtered at the extractor belt filters. It is transported by conveyor belt, rail or other wheeled conveyance. It is generally mixed with dry cobb aggregate but may be transported and used separately depending on construction needs. This term replaces the former terms 'coarse tailings', 'filter tailings', or 'belt filter tailings' in order to clarify the purpose and origin of the construction material to which it refers.

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