[project] this glass indicates if low crystallization tendency by special sign sign. In addition, additionally providing the method for being suitable as packaging material of pharmaceuticals. [solution] (the quality % on the basis of oxide) is made of glass below, or forms the glass constituted by glass below. SiO 2: 70-90, B2O 3: 8-14, Al2O 3: 0, Na2O: 0-4, K2O:3-10, Li2O: 0, Na2O+K2O:3-14, CaO, MgO, BaO and SrO: 0-1, CaO+MgO+BaO:0-2, ZnO: 0-1, ZrO 2: 3.6-14, TiO2: 0-10, limpid dose: 0. of a kind or more01-2.0. About the borate glass that aluminium is free of, ZrO2: K2O mass ratio is 1. herein2: 1 to 1.In the range of 4: 1. Scheme without selection
