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Whatman™ Grade 43 Quantitative Filter Paper

Contains very low ash content appropriate for gravimetric analyses requiring sample combustion. Whatman™ Grade 43 Quantitative Filter Paper can be ashed during gravimetric analysis without contributing substantially to the measured weight.

Manufacturer: whatman™  1443-125

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Catalog No. 09-856L


Description & Specifications


Quantity 100Pack
Grade 43
Material High-quality Cotton Linters
Pore Size (Metric) 16μm
Format Circle
Thickness (Metric) 220μm
Porosity Intermediate
Diameter (Metric) 125mm
For Use With (Application) Foodstuff and soil analyses, particle collection in air pollution monitoring for XRF analysis. Normal loading; limited wet strength
Flow Rate Medium

Ashless filter paper for inorganic analysis

  • Very low ash content (0.007% ash concentration maximum)
  • Intermediate particle retention rating of 16µm
  • Herzberg filtration speed of 155 sec.
  • Particle collection between that of Grades 40 and 41


Accessories for Catalog Number: 09856L

Item Mfr. No. Item Description Price Per Unit Quantity  
Fisherbrand™ Filter Forceps
Easy, effortless handling of membranes and glass fiber filters Each for $10.80