pharmaceutical glass tubing.COA7.0
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
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