LabExact
Grade CFP40 Quantitative Ashless Cellulose Filter Paper, 8µm, 90mm, Medium Flow, 100/Pk SKU: LE-CFP40-090

Featuring high-purity quantitative ashless cellulose technology delivering extremely low ash content <0.01% for precision gravimetric analysis applications. Medium retention and flow rates make this media widely used in many general quantitative procedures in both liquid and gas. Acid-washed construction with 8µm particle retention provides reliable separation performance while maintaining optimal flow characteristics for high-volume environmental testing and analytical protocols.

Key Cellulose Membrane Characteristics

Manufactured from refined pulp and alpha linters ensuring consistent porosity and filtration performance
Acid washed construction with extremely low ash content <0.01% eliminates interference in gravimetric determinations
8µm particle retention delivers precise separation of medium-sized particulates while optimizing flow rates
Hydrophilic surface chemistry enables rapid wetting and consistent filtration performance with aqueous solutions
0.200mm thickness provides structural integrity during filtration while maintaining optimal permeability characteristics

Key Construction Characteristics

90mm diameter accommodates standard filter funnels and analytical equipment configurations
Quantitative grade construction ensures complete ash removal during ignition for accurate gravimetric analysis
Entraps particulate within the random matrix of cellulose fibers within the depth of the media for thorough retention
Compatible with both organic and aqueous solvents enabling versatile sample preparation applications
Medium flow rate balances filtration speed with retention efficiency for optimized laboratory throughput

LE-CFP40-090 filters excel in standard environmental test procedures such as soil sample analysis and the collection of trace elements and radionuclides in air samples. Also used in liquid food tests for determination of sediments, primary analysis of cements and slurries and sample preparation prior to spectrophotometry. The balanced retention and flow characteristics transform these filters into versatile analytical media, delivering consistent performance for your quantitative procedures requiring validated ash-free results and reliable particulate separation across diverse laboratory applications.