The glass filtering crucible, available in various capacities, is essential in laboratories. Made from borosilicate glass 3.3, it complies with DIN 12348 and ASTM E 438 standards. It offers excellent chemical resistance and can be used in ovens up to 500 °C with gradual heating.
Glass Filtering Crucible
Code
The glass filtering crucible, available in various capacities, is essential in laboratories. Made from borosilicate glass 3.3, it complies with DIN 12348 and ASTM E 438 standards. It offers excellent chemical resistance and can be used in ovens up to 500 °C with gradual heating.
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Glass Filtering Crucible with Fritted Disc
The glass filtering crucible is an essential laboratory tool made of borosilicate glass 3.3, in compliance with DIN 12348. This material is known for its low thermal expansion, meeting the ASTM E 438, TYPE 1, CLASS A standard.
Thermal Resistance: Although borosilicate glass offers good thermal resistance, it should not be exposed to extremely high temperatures or direct flames. It can be safely used in a drying oven up to 500 °C, provided that heating is gradual.
Usage Recommendations:
- To maintain constant weight, it is recommended to dry at temperatures between 110 °C and 150 °C.
- Do not subject items with porous plates of grade 4 or 5 to sudden temperature changes to avoid damage caused by vapor pressure.
- Place the crucible upright inside the oven or sterilizer for safe use.
Filtering or Gooch Crucibles
| Pore Grade | Porosity |
|---|---|
| G0 | 160–250 µm |
| G1 | 90–150 µm |
| G2 | 40–90 µm |
| G3 | 15–40 µm |
| G4 | 5–15 µm |
Properties of Borosilicate Glass 3.3:
This type of glass is distinguished by its excellent chemical resistance to water, saline solutions, acids, and bases. However, it is sensitive to hydrofluoric acid and may be attacked by strong bases or phosphoric acid at high temperatures.
Data sheet
- Product Type
- Glass filter crucible
- Material
- Borosilicate Glass
- Class
- Type I, Class A
- Plate/Disc
- Fritted Disc
- Type
- Porosity 0 to 4, to select
- International Standards
- ASTM 438