Item | Sand |
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CEN standard sand (ISO standard sand) is a natural sand, made from siliceous, especially its finest fraction. It is very clean, with neat particles that are usually isometric and circular in shape. The sand is usually dried, screened, and prepared in modern workshops to ensure good sand quality and consistency in each sand particle. The sand conforms to the requirements of grading, EN 196-1 and ISO 679: 2009, measured by sieving.