Description

Glass microfiber filters
Whatman glass microfiber filters are manufactured from 100% borosilicate glass and are available with or without binder. These depth filters combine fast flow rates with high loading capacity and the retention of very fine particles, extending into the sub-micron range. Glass microfiber filters can be used at temperatures up to 550oC and are excellent for use in applications involving air filtration and for gravimetric analysis of volatile materials where ignition is involved.
Whatman Multigrade GMF 150 is particularly valuable for the prefiltration of larger volumes and solutions that are normally difficult to filter.

Binder-free glass microfiber (GMF) filter papers
Grade GF/A (1.6 um*)
Recommended for gravimetric determination of airborne particulates, stack sampling, and absorption methods of air pollution monitoring. Whatman Grade GF/A card-mounted filters are used in static sample and personal air sampler applications. These aerosol sampling and particulate monitoring filters provide high flow rates and minimal sample interference.