Pharmaceutical borosilicate glass tube for ampoule and vials Physical Property and chemical property
No.
ItemValue
1
coefficient of expansion due to heat 6.2~7.5x10-6K-1 2 Inner stress <40nm/mm 3 121℃ particle method water resistance ≤0.1 4 The inner surface of the water resistance ≤0.8 5 innerstress max40nm/mm 6 circular runout ≤2.4 7 121℃ particle method water resistance ≤0.10ml,(0.02MOL/L)
Main CompositionSiO2B2O3Na2OBaOCaOAl2O3706.6-7.011<2<36.2
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