Cytiva’s 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.

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