Also known as: SA+, SA/
SA has various meanings in the Weather category. Discover the full forms, definitions, and usage contexts of SA in Weather.
Aggregate consisting of mineral particles whose size is generally less than 5mm; fine aggregate. Merchants in the UK supply soft sand and coarse or fine sharp sand. Grains of rock between 0.06mm and 2mm. In metalcasting, a loose, granular material high in SiO2, resulting from the disintegration of rock. The name “sand” refers to the size of grain and not to mineral composition. Diameter of the individual grains can vary from approximately 6 to 270 mesh.
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