Grade 43

Whatman Grade 43 filters are designed for applications in inorganic analysis and other instrumental analyses. Offering a balance between particle retention and filtration speed. Their properties make them suitable for both gravimetric analyses and procedures involving sample combustion.

Key Features:

Very Low Ash Content: With a maximum ash content of 0.007%, Grade 43 filters are well-suited for analyses where minimal contamination is critical.
Intermediate Particle Retention: They feature a nominal particle retention rating of 16 µm. This provides a level of particle collection that is intermediate between Whatman Grade 40 and Grade 41 filters.
Filtration Speed: The Herzberg filtration speed is 155 seconds, making them relatively fast while still offering effective particle retention.
Applications: Grade 43 filters are appropriate for inorganic and instrumental analyses, as well as gravimetric analyses where sample combustion is involved. Their properties make them versatile for a range of analytical tasks, particularly where intermediate particle retention is required.

Whatman Grade 43 filters are versatile tools for a variety of analytical procedures. Offering low ash content and effective particle retention. Their intermediate characteristics make them suitable for applications requiring a balance between filtration speed and particle collection, including both inorganic and instrumental analyses.