LabExact
Grade CFP40 Cellulose Filter Paper, Quantitative Ashless, 8µm, 42.5mm, 100/Pk SKU: LE-CFP40-042

Featuring acid-washed quantitative cellulose construction delivering exceptional precision for gravimetric analysis and environmental testing procedures. Demonstrating medium retention and flow rates, this media is widely used in many general quantitative procedures in both liquid and gas. The refined pulp matrix with hydrophilic surface chemistry provides reliable particulate capture while maintaining consistent flow characteristics essential for soil analysis, trace element collection, and radionuclide monitoring applications.

Key Cellulose Membrane Characteristics

Manufactured from refined pulp and alpha linters ensuring consistent fiber structure and reliable separation performance
Acid washed construction with extremely low ash content <0.01% eliminates interference in gravimetric determinations
8µm particle retention delivers medium porosity optimized for general quantitative analysis procedures
Hydrophilic wetability enables rapid wetting and consistent liquid flow through the cellulose fiber matrix
0.200mm thickness provides structural integrity while maintaining filtration efficiency during extended processing

Key Construction Characteristics

42.5mm diameter accommodates standard laboratory filter funnels and analytical equipment configurations
100-pack quantity ensures sufficient supply for routine environmental and analytical testing protocols
Nonsterile format suitable for general laboratory procedures requiring quantitative ashless performance
Equivalent to Whatman 40 and Ahlstrom 74 specifications providing cross-platform compatibility
Random matrix of cellulose fibers performs separations by entrapping particulate within the depth of the media

LE-CFP40-042 filters excel in standard environmental test procedures such as soil sample analysis and the collection of trace elements and radionuclides in air samples, liquid food tests for determination of sediments, primary analysis of cements and slurries and sample preparation prior to spectrophotometry. Outstanding ashless performance with <0.01% residue maximizes your analytical accuracy in gravimetric procedures, while the medium retention characteristics accelerate processing times for routine quantitative determinations requiring both precision and efficiency.