WHATMAN Grade 2 Qualitative Filter Paper

GE Healthcare Life Sciences
Slightly more retentive than Grade 1 with a corresponding increase in filtration time (i.e., slightly slower filtration speed). More absorbent than Grade 1. In addition to general filtration in the 8 μm particle size range, the extra absorbency is utilized, for example, to hold soil nutrient in plant growth trials. Also used for monitoring specific contaminants in the atmosphere and in soil testing.

Grade 2 certified is pecifically developed for use in measuring the Ignition Strength of Cigarettes according to ASTM standard E 2187-04. The paper meets both the conditioned (26.1 ± 0.5 g, SD ≤ 0.3 g) and dried (24.7 ± 0.5 g, SD ≤ 0.3 g) weight requirements.
• Typical Properties
Description Medium flow
Particle Retention in Liquid (μm) 8
Filtration Speed (approx) Herzberg (s) 240
Air Flow (s/100 ml/in2) 21
Typical Thickness (μm) 190
Basis Weight (g/m2) 103

• Ordering Information

Diameter (mm)

Catalog Number

Quantity/Pack

42.5

1002-042

100

47

1002-047

100

55

1002-055

100

70

1002-070

100

90

1002-090

100

110

1002-110

100

125

1002-125

100

150

1002-147

100

150

1002-150

100

185

1002-185

100

240

1002-240

100

270

1002-270

100

320

1002-320

100

385

1002-385

100

500

1002-500

100

460 x 570

1002-917

100

600 x 600

1002-929

100

580 x 680

1002-931

100


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