31/07/2018 Community Activities
Precision Glass Tube with 0.001 mm Tolerance Used in Laboratory, Hospital
Precision glass tubes ith accurate dimension and 0.001 mm tolerance are made of soda-lime, borosilicate or quartz material. Because of their different sizes, various colors, acid, alkali resistance and low thermal expansion coefficient features, precision glass tubes are widely used with pistons and many precision instruments in laboratory, factory, hospital, and so on.
A short straight polished precision glass tube with a coin diameter thickness wall.
PGT-01: The short polished percision glass tube has good thermal and chemical properties.Five long straight precision polished glass tubes with heavy wall.
PGT-02: The heavy wall precision glass capillary tubes have strong acid, alkali, high temperature resistance ability.
Specifications of precision glass tube
Material: soda-lime, borosilicate, quartz.
Inside diameter: 5–500 mm.
Outside diameter: 5.1–550 mm.
Tolerance: 0.001 mm.
Length: 10–2500 mm.
Color: white, red, green, pink, yellow and so on.
Edge handling: polishing.
Packaged in 5 layer corrugated cartons or pallet, with foam or bubble wrap.
Table 1: Precision Glass Tubes Thermal Properties
Material Soda-lime Borosilicate Quartz
SiO2 Content 60% – 75% > 81% > 90%
Density at 25 °C 2.53 g/cm3 2.23 g/cm3 2.20 g/cm3
Coefficient of Thermal Expansion 8.6 × 10-6 m/K 3.3 × 10-6 m/K 5.5 × 10-6 m/K
Softening Point 726 °C 820 °C 1780 °C
Melting Point 780 °C 1680 °C 2000 °C
Annealing Point 546 °C 560 °C 1120 °C
Temperature for Short Time 400 °C 500 °C 1500 °C
Temperature for Long Time 350 °C 450 °C 1200 °C
Specific Heat 0.18 J/kg °C 0.9 J/kg °C 670 J/kg °C
Features of precision glass tube
Tight dimensional tolerance, tolerance can be as small as 0.001 mm.
Stable chemical property, acid and alkali resistance.
Can work under high temperature for a long time.
Various sizes for using.
Excellent outlooking, various colors.
Applications of precision glass tube
Used with pistons in hospital such as syringe.
Used for precision instruments in laboratory and factory such as burette, capacity bottle.
Used for precision instruments in household such as thermometer.
Used for precision instruments in office such as laser printer.
A glass syringe with a black plastic piston, and there is little gap between the piston and the glass tube.
PGT-03: Precision glass tube is used as syringe with a piston.Two burettes are placed on the blue background.
PGT-04: Precision glass tube is often used as burette.
A thermometer is made up of the precision glass with a small gap inside for mercury.
PGT-05: Precision glass tube is often used for thermometer making.Many capacity bottles of different sizes are placed on a desk.
PGT-06: Precision glass tube is widely used in laboratory for liquid measuring.
Many blood collectors with white plastic color are placed in a blue tray.
PGT-07: Precision glass tube is often used as blood collector in hospital.The reflector of laser printer is made of precision glass.
PGT-08: Precision glass is widely applied to many precision instrument, such as laser printer.