Whatman Grade GF 9 Glass Microfiber Filters with Binder

Description

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

Strength for environmental analysis

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 PCB*, DDE, 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

* PCB = polychlorinated biphenyl, DDE = dichlorodiphenyldichloroethylene, DDT = dichlorodiphenyltrichloroethane

Parameter	Grade GF 9 Filter with Inorganic Binder, circle
Application:	Used in the filtration of coarse particles. Frequently used in environmental analysis, in the determination of PCB, DDE, DDT, furans and dioxins in the air; pollution measurements in industrial, urban and populated areas, cement factories, iron and steel industry, dust measurements at the workplace, determination of the dust fraction in technical gases, and testing the effectiveness of dust-collecting.
Grade:	Grade GF 9
Filtration Speed:	Medium
Air Flow Rate :	27 s/100 ml/1.56 cm²
Basis Weight :	70 g/m²
Operating Temperature:	less than 500 °C
Material :	Borosilicate glass
Binder Type:	Inorganic
Typical Thickness:	350 µm
Format & Dimensions:	Circle – Ø 50 mm, Ø 90 mm, Ø 110 mm
Pack Size :	100 pieces – 90 mm, 110 mm 200 pieces – 50 mm