WHATMAN Grade 43 Quantitative Filter Paper, Ashless

GE Healthcare Life Sciences
Whatman Grade 43 filters support inorganic analysis and other forms of instrumental analyses. The low ash content also makes Grade 43 appropriate for gravimetric analyses requiring sample combustion. Grade 43 are intermediate in retention between Grades 40 and 41, and twice as fast as Grade 40. Typical applications include foodstuffs analysis, soil analysis, particle collection in air pollution monitoring for subsequent analysis by XRF techniques, and inorganic analysis in the construction, mining, and steel industries.
• Typical Properties
Description Medium to fast
Particle Retention in Liquid (μm) 16
Filtration Speed (approx) Herzberg (s)  
Normal ash content (%) 0.007
Typical Thickness (μm) 220
Basis Weight (g/m2) 95
Typical water flow rate (ml/min)2 62
Nominal air flow rate (s/100 mL/in2) 11

• Ordering Information – Qualitative Filter Circles

Diameter (mm)

Catalog Number

Quantity/Pack

90

1443-090

100

110

1443-110

100

125

1443-125

100

150

1443-150

100

185

1443-185

100


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