These quality glass test tubes are made from borosilicatae glass. Borosilicate glass offers excellent durability and chemical resistance while also reducing pH changes and contaminants that are potentially leached from tubes made from soda lime glass. Six popular sizes are available. The bottoms of the tubes are uniform and rims are fire-polished. Packaging is neat with 250 tubes per box. They are shrink-wrapped in film to help keep them particle free.
Features
- Made from Type 1 Class A Borosilicate Glass
- Chemically inert tubes
- Produced in an ISO 9001:2008 certified factory
- Meets ASTM E890 specification type 1 requirements
- Conforms to USP Type 1 standards
- Melting Temperature: (Log n=4): 1460°C (+/- 20°C)
- Softening Temperature: (Log n=7.6): 1220°C (+/- 20°C)
- Freezing Point: -50°C
- Case of 1000 tubes (4 boxes of 250)
- Volume:
- 23 ml
- Material:
- Borosilicate Glass
- Pack Size:
- 250 per box, 1000 per case
- Height:
- 150 mm
- Diameter:
- 16 mm
