LabExact
Grade CFP540 Cellulose Filter Paper, Quantitative Ashless, 7-8µm, 240mm, Hardened, 100/pk SKU: LE-CFP540-240

Featuring quantitative ashless cellulose construction delivering exceptional wet strength and dimensional stability for precision gravimetric analysis applications. Ultra-low ash content below 0.01% ensures analytical accuracy while 7-8 µm particle retention with medium flow rates optimizes separation efficiency for demanding laboratory procedures. Precisely controlled 0.210mm thickness measured under standardized conditions (TAPPI T411)¹ provides consistent filtration performance across diverse analytical workflows.

Key Cellulose Membrane Characteristics

Quantitative ashless construction eliminates interference in gravimetric determinations and trace metal analysis procedures
Hardened wet-strength formulation maintains structural integrity during aggressive washing and extraction protocols
Medium porosity matrix achieves optimal balance between retention efficiency and practical flow rates for routine analysis
Hydrophilic surface chemistry promotes rapid wetting and uniform liquid distribution across the filtration area
Ultra-pure cellulose furnish delivers consistent performance without binder contamination or organic interference

Key Construction Characteristics

Standard 240mm diameter accommodates large-volume sample processing and high-capacity analytical procedures
Exceptional dimensional stability withstands multiple wash cycles and aggressive chemical treatments without degradation
Precision thickness control measured under 4 psi pressure using TAPPI Method T411¹ ensures reproducible filtration characteristics
Nonsterile grade optimized for general laboratory separation and clarification applications requiring analytical precision
Convenient 100-sheet packaging maintains cleanliness and provides extended shelf life for high-volume laboratories

LE-CFP540-240 filters deliver reliable 7-8 µm particle retention while maintaining practical flow rates essential for routine quantitative analysis workflows. Outstanding chemical resistance and wet-strength properties maximize filtration reliability during extended processing cycles, accelerating your analytical throughput without compromising precision. Quantitative cellulose construction performs separations by entrapping particulate within the random matrix of cellulose fibers, transforming these filters into validated analytical media providing exceptional performance assurance for gravimetric analysis, environmental testing, and quality control applications demanding both precision and reliability.

¹ TAPPI T411 Thickness (Caliper) of Paper, Paperboard, and Combined Board: https://imisrise.tappi.org/TAPPI/Products/01/T/0104T411.aspx