LabExact Heat Treated Quartz Filter Membrane, 2.4 cm, Binderless (100/Pack)

Glass microfiber filters offered in this product range from IW Tremont are produced from 100% borosilicate glass microfiber without the use of binders or strengthening agents. These filters offer many advantages in a wide range of analytical applications. The fibers used to manufacture these depth filters are smooth and uniform. This permits their characteristically high flow rates while allowing retention of exceptionally small particles and high load capacity. These characteristics are particularly important in applications involving high concentrations of particulate or gelatinous substances. In choosing the appropriate filter for a specific application, careful consideration should be given to the physical form and concentration of the material to be captured by the filter. Glass Microfiber Characteristics include:

Fastest flow rate
High load capacity
Retention of particles to sub-micron size
Temperature range up to 500°C
Use in liquid and gaseous filtration
Inert fiber composition
Free of binders or additives

Because of the characteristically high flow rates of depth filters, they are generally used in applications such as single and multi process removal of sediment and coarse particulate. Glass microfiber filters without binders are an ideal medium to entrap sediment for further analysis and counting due to the inert matrix. Also, depth filtration media are commonly used for pre-filtration prior to surface filtration with substrates such as membranes.

Grade Quartz A High Temperature is a fine porosity binderless quartz (SiO2) glass microfiber with a 99.999% efficiency in air filtration for the retention of 2.20um particles. Effective temperature range up to 1150 °C. This media meets or exceeds the physical, performance and elemental requirements for EPA PM10, Ambient Air Monitoring methods. Flow rate 1.1 - 1.35 m3/min (Resistance 95mmH20@10.5 ft/min). Loss on ignition, <2%. Tensile strength: 285g/ 15mm (ASTM D828), MD tensile is 11.3 lbs/in (TAPPI T494). Primarily used in air pollution monitoring, atomic absorption spectroscopy, flame emission spectrometry and other applications where an extremely critical analysis is needed. Ideal for use in acidic gases (except Hydrofluoric) and aerosols, stacks and flue gas monitoring.