Quantitative Filter Paper NO. 94
Ahlstrom manufactures a series of extremely high purity,acid washed filter papers designed for use in analyticaland gravimetric analysis. The quantitative grades aremanufactured from top quality cotton linters using ultra-pure, reverse-osmosis water and are furthertreated with dilute acid to remove any remaining organicand inorganic impurities. All quantitative grades aremanufactured in a strictly controlled environment thatensures high uniformity and high purity from filter to filter.
Key Features
Quantitative analysisLow ash content 0.07% High wet-strengthConsistent performanceHardened grades availableCustom cutBulk packaging
Specs.
Retention in um: 1.5Filtration Speed Herzberg Sec 100mls: 1724 Filtration Speed Rapidity mls/min: 4 Load Capacity: Medium Cross Referance: 42
Ashless Grades (Ash 0.007%)
These standard ashless grades are high purity filter papers suitable forroutine quantitative gravimetric techniques and in the preparation ofsamples for use in analysis involving instrumental techniques.
Ahlstrom 94: 1.5μm – Slow Speed
This is an extremely fine retention filterfor critical gravimetric analysis of veryfine particles such as barium and leadsulfates, stannic and nickel sulfide,calcium oxalate and calcium fluoride.