Medical glass tube

Pharmaceutical Neutral Glass Tube COE 7.0(Clear/Amber) ** Low borosilicate glass tube COE 7.0 ** Sizes can be produced by customers' request. Physical Property No. Physical performance Numerical Value Unit 1 Coefficienf of mean linear thermal expansion(20oC,300oC) 7.0±0.1 10-6K-1 2 Transformation temperature 550±15 oC 3 Softening point 750±10 oC 4 Working point 1110±20 oC 5 Density at 20oC 2.46±0.02 g/cm3 Main Composition SiO2 B2O3 Na2O BaO CaO Al2O3 70 6.6 11 <2 <3 6.2 Chenical Property Water resistance to ISO720 1 Water resistance to European Pharmacopoeia 1 Water resistance to USP23 1 Acid resistance Class(DIN12116) 1 Alkali resistance Class(ISO695) 2