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Glass crucible with 30 ml capacity and sintered disk.
Made in EU - Czech Republic in Borosilicate 3.3 glass according to ASTM E438, TYPE 1, CLASS A
Filter porosity: available from pore grade 0 to pore grade 4.
See the pore size (µm) in the table in the technical information section.
|Product Type||Glass filter crucible|
|Packaging & Containers||Glass|
|Material||Borosilicate Glass 3.3|
|Body Shape||Cylindrical body|
|Bottom Form||Flat bottom|
Glass type: Borosilicate 3.3 according to DIN 12348 - Glassco brand
Standard specification for glass in laboratory apparatus: ASTM E 438, TYPE 1, CLASS A - low-expansion borosilicate glass
The thermal resistance is significantly lower than that of standard Glassco glass, so they cannot be subjected to excessive temperatures or direct contact with flame or fire.
As far as the weight consistency of the crucible is concerned, from room temperature onwards it can be placed in a drying oven at 150°C, even though the temperature of 110°C is generally used.
The crucible can be safely heated in the drying oven to 500°C provided that the incorporation of the temperature and heating is gradual
Items with grade 4 and 5 porous plate if cold and wet should not be subjected to a sudden change in temperature as the water vapour pressure may be sufficient to break the filter.
The crucible should be turned upside down inside the furnace or sterilizer.
Pore grade - Pore grade measurement
G0: 160-250 µm
G1: 90 -150 µm
G2: 40-90 µm
G3: 15-40 µm
G4: 5-15 µm