Whatman 1827-055 Filter Circles, 55mm Dia, Binder Free Grade 934-AH, 100/pk (PN:1827-055)

These filters have a nominal particle retention of approximately 1.5 µm, allowing them to capture fine suspended particles while still maintaining fast filtration speeds for larger sample volumes.

Whatman Grade 934-AH glass microfiber filters are widely used in environmental monitoring, water quality testing, and laboratory filtration. They are especially popular for total suspended solids (TSS) analysis, cell harvesting, air pollution monitoring, and liquid scintillation sample preparation.

The filters are manufactured from binder-free borosilicate glass microfiber, which provides excellent chemical resistance and minimal contamination during filtration processes. This construction also reduces fiber shedding and improves analytical reliability.

Glass microfiber filters like Grade 934-AH offer high loading capacity and fast flow rates, allowing them to handle turbid samples or liquids with heavy particulate loads without clogging quickly.

Yes. These filters can tolerate temperatures up to approximately 500–550 °C, making them suitable for applications such as gravimetric analysis and procedures that require heating or ashing of the filter material.