Ahlstrom-Munksjo Filtration LLC
Mfg Item # : 5130-3850
Ahlstrom offers a full range of standard pleated grades that meet your needs from grades with rapid flow rates for filtration of viscous materials to grades with tight matrices for removal of fine precipitates. Ahlstrom’s pre-pleated grades can save valuable time and maximize the efficiency of the laboratory filter system. Pleating improves the effective surface area increasing flow rate and loading capacity thus decreasing filtration time. Pleated circles are available in 12.5cm to 50cm diameters. Qualitative analysis Low ash content 0.06% Untreated Consistent performance Wet-strengthened grades available Custom designed for end-use application Custom cut Bulk packaging

Ahlstrom-Munksjo Filtration LLC
Mfg Item # : 6170-2050
Ahlstrom’s qualitative grades of filter paper are, by definition, recommended for use in analytical methods, which determine or identify particulate constituents of a mixture irrespective of the amount present. Qualitative filter papers are often used in routine separation work that still requires high purity and consistent performance. Ahlstrom offers a complete range of low ash filter papers for general laboratory work that provides you with the correct combination of particle retention, filtration speed, loading capacity and wet-strength. All our qualitative grades consist of > 95% super refined a-cellulose and linter fibers. Qualitative analysis Low ash content 0.06% Untreated Consistent performance Wet-strengthened grades available Custom cut Bulk packaging Standard Grades (Non Wet-Strengthened) Standard qualitative filter papers are suitable for quadrant folded or gravity flow applications. These grades contain a high level of alpha-cellulose that provides high purity but will weaken when wet. The inherent strength of standard (untreated) grades does not pose a problem when they are used in routine quadrant folded applications. We do not recommend these grades for use in vacuum work or when wet handling is required. Ahlstrom 617: 35µm – Fast Speed This is an extremely fast filtering grade and has a larger particle retention than Ahlstrom 631. Ahlstrom 617, a thicker filter paper with higher loading capacity, is used for rapid filtration of coarse particles and gelatinous precipitates such as in oils and resin solutions. Ahlstrom 617 is also found in construction product testing and is used by students to retain large flocculents and precipitates.

AHLSTROM MUNKSJO FILTRATION LLC. 1610-0700
GR161 Filter Paper Circles 100 Circles/PK. 7.00cm diameter circles. Glass Fiber, Binderless Filter Paper. Fast filtration speed & absorbence. Weight 68g/m2, Thickness 0.32mm, Herzberg 68sec/100ml, Rapidity 100ml/min, Capillary Rise 52mm, Retention 1.1um, Frazier Air Flow 3.6cfm/ft2. Exact Match: 38011-920

Multi-Layer Prefilter, ReliaMAX™, Polypropylene Housing, Female Luer Lock /Male Luer Slip, Case of 1500

GR642 Filter Paper Circles 100 Circles/PK. 100PK/CS. 11.00cm diameter circles. Qualitative High Purity Filter Paper. Medium filtration speed/abs. Weight 95g/m2 Thickness 0.20mm Herzberg 229sec/100ml Rapidity 30ml/min Capillary Rise 18mm Retention 2um Smooth surface 100% cotton fiber. Exact Match 38001-109

GR617 Filter Paper Circles 50 Circles/PK. 100PK/CS. 15.00cm diameter circles. Qualitative High Purity Filter Paper. Very fast filt speed/abs. Weight 123g/m2 Thickness 0.51mm Herzberg 19sec/100ml Rapidity 360ml/min Capillary Rise 48mm Retention 35um Creped surface 60% cotton/40% wood fiber. Exact Match 71440-006

Glass Fiber Filter Grade 151 4.7cm diameter. Binder-free glass fiber. For TCLP methods liquid scintillation counting radio immunoassay water and wastewater analysis gravimetric analysis and more. Fine porosity. Medium flow rate. 0.7um particle retention. Exact Match 28496-176

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. Quantitative analysis Low ash content 0.007% (Acid-wash treated) High wet-strength Consistent performance 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 74: 2.0µm – Medium Speed This grade has medium flow rate and good particle retention and is the most commonly used acidwashed filter. Ahlstrom 74 covers a wide range of general ashless filtration applications. It is used for gravimetric analysis of numerous components (e.g.: cements, copper, clay, bismuth, silicon, iron) found in heavy industries such as construction, mining or steel. Ahlstrom 74 is also used as a high purity filter for speedy filtering of trace elements such as silver chromate, lead sulfate, zinc and ammonium hydroxides. Ahlstrom 74 is also found in general soil analysis for separating solid from aqueous extracts. Grade: 74 Retention (µm): 2.0 Filtration Speed (Herzberg sec/100mls): 229 Filtration Speed Rapidity (mls/min): 30 Loading Capacity: Medium

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. Quantitative analysis Low ash content 0.007% (Acid-wash treated) High wet-strength Consistent performance 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 74: 2.0µm – Medium Speed This grade has medium flow rate and good particle retention and is the most commonly used acidwashed filter. Ahlstrom 74 covers a wide range of general ashless filtration applications. It is used for gravimetric analysis of numerous components (e.g.: cements, copper, clay, bismuth, silicon, iron) found in heavy industries such as construction, mining or steel. Ahlstrom 74 is also used as a high purity filter for speedy filtering of trace elements such as silver chromate, lead sulfate, zinc and ammonium hydroxides. Ahlstrom 74 is also found in general soil analysis for separating solid from aqueous extracts. Grade: 74 Retention (µm): 2.0 Filtration Speed (Herzberg sec/100mls): 229 Filtration Speed Rapidity (mls/min): 30 Loading Capacity: Medium