Filter Paper
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Filter Paper #613 11.0cm PK/100
Item #:
ETD/6130-1100
Supplier #: 6130-1100
Supplier #: 6130-1100
PAPER FILTER Qualitative High Purity Grade 613 11 cm circle 100/pk Exact Match 71440-010
Filter Paper #615, 11cm, PK/100
Item #:
ETD/6150-1100
Supplier #: 6150-1100
Supplier #: 6150-1100
Qualitative Filter Paper 25 Um Fast Speed Exact Match 97058-882
#54 Filter Paper 11.0cm
Item #:
ETD/0540-1100
Supplier #: 0540-1100
Supplier #: 0540-1100
FILTER PAPER Quantitative Ashless Grade 54 11 cm circle 100/pk Exact Match 47745-732
Filter Paper Grade #74 11.0cm 100/pk
Item #:
ETD/0740-1100
Supplier #: 0740-1100
Supplier #: 0740-1100
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
Filter Paper Glass Fiber #161 11cm
Item #:
ETD/1610-1100
Supplier #: 1610-1100
Supplier #: 1610-1100
GR161 Filter Paper Circles 100 Circles/PK. 11.00cm 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 47733-004