Glass Fiber Filters without Binder Resin

Overview

Millipore fibrous disc filters are available in a wide range of flow rates and throughput capacities. Glass fiber filters are available with or without binder resins and can be sterilized by EO, gamma, or autoclave (121 °C at 1 bar).

Glass Fiber Filters without Binder Resin

The filters without binder resin retain their structural integrity without weight loss when heated up to 500 °C and can therefore be used in gravimetric analysis as well as for the filtration of hot gases.

Type AP40

• Recommended for Standard Methods Total Suspended Solids 2540D 
• Recommended for USEPA method 1311 for TCLP analysis 
• Maintains structural integrity without weight loss when ignited to 550 °C (1022 °F) after sample filtration 
• Recommended for determining volatile suspended matter in wastewater and industrial effluents

Type APFA

• Retains fine particles with good efficiency, even at high flow rates 
• Recommended for monitoring wastewater and collecting suspended particles in gases (e.g., fumes from chimneys) 
• Use in biochemical applications (e.g., collection of cells and filtration of protein or nucleic acid precipitates)

Type APFB

• Higher mechanical strength when wet and greater loading capacity than type APFA filters 
• Use for liquid clarification, quantification of solids in suspensions of fine particles, and scintillation counting

Type APFC

• Greater retention, especially for fine particulate and microorganism removal than type APFA filters 
• Use for determining total suspended solids in drinking water 
• Use for filtering proteins or nucleic acid TCA precipitates and for collecting cells and microorganisms

Type APFD

• Thick filter with high flow and low retention 
• Use for clarifying suspensions containing particulates > 1.0 µm

Type APFF

• Use for filtering extremely fine precipitates such as protein, nucleic acids, or serum precipitates 
• Recommended for USEPA method 1311 for TCLP analysis