Home » Pharma Packaging » Glass Tubing » CLEAR » NSV51 – Borosilicate – Type I

NSV51 – Borosilicate – Type I

Standard range

Outer ∅: 6 to 30 mm
Wall thickness: 0.45 to 1.7 mm
Tubing length: 1.4 to 1.7 m

European Pharmacopoeia
US Pharmacopoeia
Japanese Pharmacopoeia
Specification for Laboratory Glass – ASTM 438-92
Requirements for arsenic extract

USA
France
India

CHEMICAL COMPOSITION	VALUE
SiO₂	74.5 %
B2O₃	11.3 %
Al₂O₃	5.8 %
Na₂O + K₂O	8 %
CaO + MgO	0.4 %
BaO	<0.1 %
CeO₂	<0.1 %
Minors	0.3 %
All values are typical average values

PHYSICAL SPECIFICATIONS	VALUE
Coefficient of expansion	51 cm/cm x10^-7
Softening point	789 °C
Annealing point	569 °C
Strain point	522 °C
Density	2.31 g/cm³
All values are typical average values

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