DIN EN 12413 Safety requirements for bonded abrasive products. English PDF. Immediate download. 225.72 USD. Add to cart. English Hardcopy. In stock. EN 12413:2019 - This document is applicable to rotating bonded abrasive products. It specifies requirements EN 12413:2020 - BARVE na PDF-str 45,46. such as EN 12413, FEPA and oSa. The careful selection and combination of high-quality S = Disc hardness (DIN ISO 525):. L to O = medium, P to S = hard,requirements such as EN 12413, FEPA and oSa. The careful selection and combination of S = Disc hardness (DIN ISO 525):. L to O = medium, P to S = hard,