FILTER PAPER Quantitative Ashless Grade 54 11 cm circle 100/pk Exact Match 47745-732

Ahlstrom manufactures a series of extremely high purity, acid washed filter papers designed for use in analytical and gravimetric analysis. The quantitative grades are manufactured from top quality cotton linters using ultra-pure, reverse-osmosis water and are further treated with dilute acid to remove any remaining organic and inorganic impurities. All quantitative grades are manufactured in a strictly controlled environment that ensures high uniformity and high purity from filter to filter. Key Features Quantitative analysis Low ash content 0.007% (Acid-wash treated) High wet-strength Consistent performance Hardened grades available Custom cut Bulk packaging Ashless Grades (Ash 0.007%) These standard ashless grades are high purity filter papers suitable for routine quantitative gravimetric techniques and in the preparation of samples for use in analysis involving instrumental techniques. Ahlstrom 54: 10µm – Fast Speed This is a fast filtering grade for rapid filtration of coarse particles and gelatinous precipitates such as iron, zirconium and aluminum hydroxides, and cobalt sulfide. Ahlstrom 54 is also used in air pollution testing to determine gaseous compounds. It is recommended for fast analysis procedures for unstable precipitates such as silicon, which requires speedy filtration. Grade: 54 Retention (µm): 10.0 Filtration Speed (Herzberg sec/100mls): 34 Filtration Speed Rapidity (mls/min): 200 Loading Capacity: Medium

Cytiva - Whatman 1454-090 Grade 54 Quantitative Filter Paper, Low Ash
9.0cm diameter. Hardened, low ash paper for gelatinous precipitates and coarse particles. High wet strength makes this grade suitable for fast vacuum assisted filtration. Coarse porosity. Fast flow rate. 20-25um particle retention. Exact Match 28489-042

Cytiva - Whatman 1454-110 Grade 54 Quantitative Filter Paper, Low Ash
11.0cm diameter. Hardened, low ash paper for gelatinous precipitates and coarse particles. High wet strength makes this grade suitable for fast vacuum assisted filtration. Coarse porosity. Fast flow rate. 20-25um particle retention. Exact Match 28489-064

Cytiva - Whatman 1454-125 Grade 54 Quantitative Filter Paper, Low Ash
12.5cm diameter. Hardened, low ash paper for gelatinous precipitates and coarse particles. High wet strength makes this grade suitable for fast vacuum assisted filtration. Coarse porosity. Fast flow rate. 20-25um particle retention. Exact Match 28489-086

Cytiva - Whatman 1454-240 Grade 54 Quantitative Filter Paper, Low Ash
24.0cm diameter. Hardened, low ash paper for gelatinous precipitates and coarse particles. High wet strength makes this grade suitable for fast vacuum assisted filtration. Coarse porosity. Fast flow rate. 20-25um particle retention. Exact Match 28489-144