Filter Paper Grade 4 – 42.5mm Diameter 1004-042

Product Description

Filter Paper Grade 4

Available Sizes:

• Circles: 27 mm to 400 mm (available prepleated)

Properties

• Particle retention¹: 25µm
• Nominal thickness: 210 µm
• Nominal basis weight: 92 g/m²
• Nominal ash content²: 0.06%

Applications

Grade 4 is a fast filter material that is well suited for retention of coarse particles and gelatinous precipitates, such as ferric hydroxide and aluminum hydroxide. Specific applications include:

• Air pollution monitoring where the collection of fine particles is not critical
• Routine clean-up of biological fluids or organic extracts