Filter Paper
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Filter Paper #615 12.5cm 100/pk
Item #:
ETD/6150-1250
Supplier #: 6150-1250
Supplier #: 6150-1250
Qualitative Filter Paper 25Um Fast Speed Exact Match 97058-886
Filter Paper #631 12.5cm
Item #:
ETD/6310-1250
Supplier #: 6310-1250
Supplier #: 6310-1250
FILTER PAPER Qualitative High Purity Grade 631 12.5 cm circle 100/pk Exact Match 47749-696
Filter Paper Grade #54 12.5cm 100/pk
Item #:
ETD/0540-1250
Supplier #: 0540-1250
Supplier #: 0540-1250
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
Filter Paper Glass Fiber #161 12.5cm
Item #:
ETD/1610-1250
Supplier #: 1610-1250
Supplier #: 1610-1250
FILTER PAPER Glass Fiber Binderless Grade 161 12.5 cm circle 100/pk Exact Match 47749-608
Filter Paper Grade #610 12.5cm
Item #:
ETD/6100-1250
Supplier #: 6100-1250
Supplier #: 6100-1250
FILTER PAPER Qualitative High Purity Grade 610 12.5 cm circle 100/pk Exact Match 38005-104