Grade A Borosilicate Glass Microfiber Sheets, 8in x 10in

Sterlitech Grade A Glass Fibre Filters – Fine Porosity Filters for Protein Filtration and Airborne Particulate Monitoring

Sterlitech Grade A glass fibre filters are binderless borosilicate microglass filters with fine porosity, fast flow rates, and a nominal retention of 1.6 µm. Widely used in protein and cell filtration, these filters are also ideal for radioimmunoassay (RIA) of weak beta emitters by scintillation counting, and for the gravimetric analysis of airborne particulates.

The absence of binders ensures high purity and low extractables, making Grade A a reliable choice for analytical workflows requiring both precision and minimal background interference.

Key Features

• Binderless borosilicate glass microfiber construction

• Fine porosity with 1.6 µm nominal retention

• Fast flow rate: 12 mL/min/cm²

• High thermal stability up to 475°C

• Thickness: 0.3 mm | Weight: 55 g/m²

Common Applications

• Filtration of precipitated proteins and cells

• Scintillation counting for beta emitters (RIA)

• Gravimetric determination of airborne particulates

• General analytical and environmental testing

Whatman Equivalent: GF/A

• Filtration of precipitated proteins and cells

• Scintillation counting for beta emitters (RIA)

• Gravimetric determination of airborne particulates

• General analytical and environmental testing

Specification

Grade: Grade A

Features & Applications: Precipitate proteins and cell filtration, scintilliation counting, determination of airborne particulate

Nominal Retention: 1.6 µm

Thickness: 0.3mm

Weight (g/m²): 55

Water Flow ^a: 12

Max. Op. Temp.: 475°C

Binder: None

Whatman Equivalent: GF/A

a The time in seconds to filter 100 ml of distilled H20 at 20°C under pressure supplied by a 10 cm water column through a 10 cm² section of filter

HS Code / Commodity Code: 7019905140