LabExact
Grade CFP542 Quantitative Cellulose Filter Paper, Wet-Strength, Ashless, 2-3µm, 125mm, 100/Pk SKU: LE-CFP542-125

Featuring hardened wet-strength cellulose matrix technology delivering ultra-fine particulate retention for demanding gravimetric analysis applications. Grade CFP542 quantitative cellulose filter media is ashless and hardened with increased wet strength, providing exceptional durability during extended filtering operations. Very slow flow rates and retention of approximately 2 - 3um enable precise separation of fine particles while maintaining analytical accuracy. Extremely low ash content of <0.01% ensures contamination-free results for quantitative determinations requiring validated performance standards.

Key Cellulose Matrix Characteristics

• Hardened wet-strength construction maintains structural integrity during prolonged contact with aqueous solutions and organic solvents
• Quantitative ashless formulation with <0.01% ash content eliminates interference in gravimetric analysis and trace metal determinations
• 2-3µm nominal retention efficiency captures fine particulates while optimizing filtration clarity for analytical protocols
• Hydrophilic surface chemistry promotes rapid wetting and uniform flow distribution across the filter matrix
• Refined pulp construction from alpha linters delivers consistent porosity and mechanical strength throughout each filter

Key Construction Characteristics

• Thickness 0.170mm measured using TAPPI T411 standard test method¹ ensures dimensional consistency for reliable sample volume calculations
• Very slow flow rate characteristics maximize contact time for thorough particulate entrapment in complex sample matrices
• 125mm diameter accommodates standard analytical funnel configurations and routine laboratory filtration equipment
• Nonsterile grade optimized for general analytical applications requiring high purity but not sterility validation
• 100-pack quantity in convenient dispenser box maintains filter cleanliness while providing easy bench-top access during repetitive analyses

LE-CFP542-125 filters achieve superior particulate retention through entrapping particulate within the random matrix of cellulose fibers within the depth of the media, accelerating your analytical workflows even during complex sample preparation procedures. Outstanding wet-strength properties resist tearing and dimensional changes when processing challenging samples containing acids, bases, or aggressive solvents. This media family is also widely used in methods to prepare samples for further testing using many types of instrumentation, transforming your filtration processes into validated sample preparation protocols that deliver consistent results for gravimetric analysis, spectroscopy, and chromatographic applications demanding both exceptional purity and proven analytical reliability.

Diameter

125mm

Grade

CFP542 Quantitative Ashless

Material

Cellulose

Pack Count

100

Pore Size (µm)

2.0-3.0

Sterility

Nonsterile

Weight

1

Wetability

Hydrophilic

Whatman Equivalent

1542-125