Pharma pack means with a chemically resistant glass

摘要

It is a pharma pack means of which a glass having at least the following components (in mol. -%, based on oxide) includes: sio₂: 59 – 84, Al₂O₃: 7 – 18,5, Cao: 1 – 25, sro: 0 – 6,5, bao: 0 – 5, zro₂: 0 – 3, Tio₂: 0 – 5, B₂O₃: 0 – 1, wherein the ratio (cao + sro + bao) / al₂O₃ 2,8, wherein the ratio (cao + sro + bao) / sio₂ ≤ 0,39, the hydrolytic resistance in accordance with din iso 720 class hga 1, and wherein said glass, except for unavoidable impurities, free of alkali metal oxides and magnesium oxides is.