LabExact
Grade CFP42 Cellulose Filter Paper, Quantitative Ashless, 2.5µm, 110mm, 100/Pk SKU: LE-CFP42-110

Featuring quantitative ashless cellulose construction delivering superior retention performance for precise gravimetric analysis applications. Grade CFP42 demonstrates an extremely high retention rate for a cellulose filter media, capturing particles as small as 2.5µm while maintaining consistent flow characteristics. Ashless filter papers are manufactured in refined pulp and are acid washed with extremely low ash content <0.01%, ensuring minimal interference in quantitative analytical procedures requiring high accuracy gravimetric determinations.

Key Cellulose Membrane Characteristics

• Extremely high retention efficiency captures 2.5µm particles with exceptional precision for fine precipitate analysis
• Quantitative ashless construction with <0.01% ash content eliminates gravimetric interference in critical analytical procedures
• Acid-washed refined cellulose pulp delivers consistent pore structure and reliable flow performance
• Hydrophilic surface chemistry promotes rapid wetting and uniform filtration across the entire membrane surface
• 110mm diameter provides optimal filtration area for standard laboratory funnel configurations and sample volumes

Key Construction Characteristics

• 0.170mm thickness maintains structural integrity during vacuum filtration while optimizing flow rates
• Nonsterile specification suitable for routine analytical applications requiring validated quantitative results
• Standard round format accommodates universal funnel holders and filtration apparatus configurations
• 100-filter packaging ensures adequate supply for extended analytical campaigns and quality control protocols
• Cross-reference compatibility with Whatman 1442-110, Ahlstrom 0940-0110, and Sartorius FT-3-104-110 equivalents

LE-CFP42-110 filters excel in demanding gravimetric applications where precise particle retention and minimal ash interference are critical for accurate analytical results. The uniquely high retention rate makes it ideal for any gravimetric analysis of very fine precipitates, including environmental sample preparation, pharmaceutical quality control, and materials analysis protocols. Standard environmental test procedures such as soil sample analysis & the collection of trace elements and radionuclides in air samples, plus liquid food tests for determination of sediments, primary analysis of cements and slurries and sample preparation prior to spectrophotometry benefit from the exceptional retention characteristics and ultra-low ash content that maximizes analytical precision and method validation compliance.