We use cookies to give you the best possible experience of our website. Read more here OK PRODUCTS USES SUSTAINABILITY CONTACT Quality Quality control from quarry to delivery Calcium carbonate occurs in the earth’s crust in the form of limestone and dolomite. As limestone is a naturally occurring substance, there are normal variations in composition as a result of the formation of the minerals. These variations can be managed through careful quality control and planning before the raw material is quarried. The raw material is then carefully checked throughout its processing, from crushing to supply of the final product. Analysis takes place in SMA’s own laboratory and mainly involves establishing the chemical composition during production and ensuring that the final product has the desired fraction size. To ensure high-quality analysis, we carry out comparative controls in cooperation with accredited laboratories. In addition, scales and measuring instruments are continually calibrated and the traceability of reference material is ensured according to national and international standards. ISO CERTIFICATE Certifikat 1780-ISO Miljö SMA Mineral EN | Certifikat 1780-ISO Kvalitet SMA Mineral EN SMA Mineral AB Box 329 682 27 Filipstad, SWEDEN 0590-164 00 sma@smamineral.com Privacy policy Terms of use