Seller peter Hu

phmarmaceutical 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