Specifications include, but are not limited to: Runway maintenance sand shall be free from an alluvial source and shall consist of washed
granular mineral sand particles free of deleterious material such as but not limited to stones, clay,
debris, slag, muck, roots, sticks, frozen materials, chloride salts or other corrosive substances. It
will be clean, hard, sharp and suitable for winter sanding operations. The PH of the water
solution containing the material shall be approximately neutral (PH 7). It shall have a moisture
content of not more than 5%. Material shall meet the following gradation using U.S.A. standard
sieves conforming to ASTME-11-81.