LabExact
Grade CFP541 Quantitative Ashless Cellulose Filter Paper, 23µm, 240mm, Fast Flow, 100/Pk SKU: LE-CFP541-240

Featuring hardened wet-strength cellulose fiber technology delivering quantitative gravimetric analysis performance with exceptional ash purity. A 23µm pore configuration provides fast flow rates and retention of approximately 21-23µm particles while maintaining structural integrity during extended filtration protocols. Ultra-low ash content below 0.01% with 0.200mm thickness eliminates interference in precision analytical determinations requiring validated quantitative results.

Key Cellulose Membrane Characteristics

Ashless and hardened construction with increased wet strength prevents membrane degradation during aqueous filtration and washing cycles
Acid-washed processing delivers extremely low ash content below 0.01% for contamination-free gravimetric determinations
Fast flow rates and retention of approximately 21-23µm particles optimize processing speed while maintaining precise analytical separation
Hydrophilic surface chemistry ensures rapid wetting and consistent flow characteristics across diverse aqueous sample matrices
Quantitative grade construction performs separation by trapping particulates within the random matrix of cellulose fibers located throughout the media depth

Key Construction Characteristics

Precision 0.200mm thickness measured under 4 psi using TAPPI method T411¹ ensures consistent filtration performance and handling characteristics
Standard 240mm diameter accommodates large-volume sample processing in funnel configurations and analytical workflows
98% efficiency retention of particulate in liquid applications delivers validated analytical accuracy for quantitative procedures
900°C muffle furnace processing validates ash content determination ensuring compatibility with high-temperature ashing protocols
Whatman 1541-240 equivalent specification provides seamless integration with established analytical methods and procedures

LE-CFP541-240 filters achieve reliable quantitative performance optimized for general quantitative procedures in both liquid and gas, including standard environmental test procedures such as soil sample analysis, collection of trace elements, liquid food testing for sediments, and sample preparation prior to spectrophotometry. Superior wet-strength characteristics resist tearing and dimensional changes during extended sample processing, accelerating your analytical throughput while maintaining the structural integrity essential for accurate weight determinations. Ashless quantitative construction transforms these filters into reference-grade analytical media, providing validated performance assurance for your critical gravimetric analysis applications demanding both rapid processing and certified analytical precision.

¹ TAPPI T411 Thickness (Caliper) Test Method: https://imisrise.tappi.org/TAPPI/Products/01/T/0104T411.aspx