Sartorius Glass Fiber (GF) Pre-filters

Use as a depth filter for larger totally filterable volumes. Sartorius Glass Fiber (GF) Pre-filters are made of borosilicate glass microfibers and are ideal for use as a pre-filter in clarification and sterile filtration. Available in a range of filter disc diameters.

Supplier:  Sartorius 134007979K

Catalog No. 14-555-448

Description

The major use of the glass microfiber filter disc is as a depth prefilter in clarification and sterile filtration. As a prefilter, it is placed directly on top of a membrane filter. The prefilter diameter must be the one specified for the chosen holder; larger diameters will intrude under the sealing ring of the holder and cause leakage.

• Manufactured with a hydrophillic acrylic binder for defined strength
• Has a high particle loading capacity for filtering relatively dirty liquids
• Mechanically and chemically stable, with a temperature resistance up to 220°C
• Other filter characteristics:
  • Weight: 73g/m²
  • Extractable content in isopropanol: 1.54%
  • Extractable content in water: 1.12%
  • Pressure drop at 5.3cm/sec: 0.363kPa
  • Total throughput at 1bar: 320mL/min./cm²

Specifications

• Autoclavable: Autoclavable
• Format: Disc
• Sterility: Non-sterile
• For Use With (Application): Used as a depth prefilter high particle loading capacity
• Hydrophobicity: Hydrophilic
• Temperature (Metric) Max: 220°C
• Diameter (English): 3.11 in.

• Color: White
• Material: Borosilicate Glass Microfiber
• Flow Rate: 295 to 381mL/min.
• Grade: 13400
• Temperature (English) Max.: 428°F
• Thickness (Metric): 550 μm
• Diameter (Metric): 7.9 cm