Whatman™ Qualitative Filter Papers Grade 1V Cytiva

Whatman Qualitative Filter Papers, Fluted, Grade 1V from Cytiva's business is a widely used pre-folded filter for many general filtration applications.

• Nominal particle retention rating of 11 µm supports general filtration
• Intermediate filtration speed (Herzberg 150 s)
• Pre-folded filter for ease-of-use and time savings with conical filter funnels; avoids the need to quadrant-fold circles

Cytiva offers a full line of qualitative papers in standard filter grades and wet-strengthened grades.

Whatman pre-folded general filter paper

As the pleated and pre-folded version of Whatman filter paper 1, Grade 1V is well suited for qualitative analysis in routine applications including:

• Separations of lead sulfate, hot calcium oxalate, and calcium carbonate
• Agriculture, for soil analysis
• Food quality testing to separate solid foodstuffs from associated liquid
• Education, to teach simple qualitative analysis