Cytiva Whatman™ Qualitative Filter Papers: Grade 4 Roll

Filters and retains course particles for monitoring air pollution. Whatman™ Qualitative Filter Papers: Grade 4 Roll is used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.

Brand:  Cytiva 1004-648

Product Code. 11310454

Description

 

These cellulose filters are used in qualitative analytical techniques to determine and identify materials and for clarfying liquids. 

• Particle Retention: 25μm
• Porosity: Coarse
• Filtration speed: Herzberg, 37 sec.
• Surface: smooth
• Extremely fast filtering  with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide
• Useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis

Specifications

• Description: Grade 4 Qualitative Filter Paper Standard Grade, roll, 38 x 114 mm
• Material: Cellulose
• Pore Size: 20 to 25 μm
• Flow Rate: Fast
• Grade: Grade 4
• Thickness (Metric): 210 μm
• Length (Metric): 114 mm

• Format: Roll
• Particle Retention: Coarse particles and gelatinous precipitates
• Filtration Speed: 37 sec.
• For Use With (Application): A standard grade filter used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.
• Quantity: 1Roll
• Dimensions (L x W): 38 x 114 mm
• Width (Metric): 38 mm