Whatman Grade GF 9 glass microfiber filters from Cytiva's business are strengthened with an inorganic binder for environmental analysis of coarse, heavy samples.

• Retention of coarse particles (~ 3 µm)
• Strengthened with inorganic binder
• Can withstand temperatures up to 500 °C
• Medium filtration speed
• Can be used as a pre-filter for dense samples

Cytiva provides a number of binder-strengthened filters for use in varied environmental analyzes.

Grade GF 9 borosilicate glass filters can be used in a range of environmental analysis applications. The added strength of the inorganic binder makes these filters appropriate for use in retention of samples with heavy particles.

Other applications include:
- Determination of Polychlorinated biphenyl (PCB), Dichlorodiphenyldichloroethylene (DDE), Dichlorodiphenyltrichloroethane (DDT), furans, and dioxins in air
- Pollution measurements in industrial, urban, and populated areas
- Dust measurements in the workplace
- Determination of dust fraction in technical gases; Testing the effectiveness of dust-collecting