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Ahlstrom-Munksjö offers a full range of glass microfiber filters manufactured from 100% pure borosilicate glass. Because of their intrinsic properties, glass microfiber filters have wide applications in many areas of laboratory analysis, especially when fine filtration and high loading capacity are required. Applications for Ahlstrom-Munksjö glass microfiber filters include environmental analysis for water, and wastewater, testing of soils, air pollution and monitoring, research and process biochemistry, and gravimetric analysis involving ignition of samples. Ahlstrom-Munksjö glass microfiber filters are also found in the filtration of hot gases and liquids and pre-filtration.
Standard glass microfiber filters contain no binders or other additives that may cause interference with sensitive enzymatic or other chemical reactions. The unique characteristics of glass microfiber filters make their use particularly advantageous to laboratory filtration by enabling fast filtration of large volumes and difficult solutions without premature clogging.
Key Features
Standard Method 2450 for measuring solids in water calls for a glass filter disc without an organic binder for some steps. It is important for this gravimetric test that the filter itself does not change weight so that the solids can be accurately measured.
Grade 169* – Volatile Suspended Solids
Grade 161* – Total Suspended Solids
Ahlstrom-Munksjö offers three microfiber glass grades for use in the toxicity characteristic leaching procedure (TCLP) as described in EPA Method 1311.
Grade 151* – Standard TCLP Filter
Grade 193* – Low Metal TCLP Filter
Grade 26* – Pre-washed low-metal TCLP Filter
|
Grades |
Retention in µm | Filtration Speed Herzberg sec/100mls |
Filtration Speed Rapidity mls/min |
Loading Capacity | GE Whatman Cross Reference |
| 151* | 0.7 | 274 | 25 | Very High | GF/F |
| 121* | 1.0 | 143 | 48 | Very High | GF/B |
| 131* | 1.0 | 88 | 78 | Very High | GF/C |
| 161* | 1.1 | 67 | 102 | Very High | 934-AH |
| 111* | 1.2 | 53 | 130 | Very High | GF/A |
| 141* | 3.1 | 19 | 350 | Very High | GF/D |
| 169* | 1.0 | 53 | 130 | Very High | 934-AH |
AVAILABLE TO ORDER
AVAILABLE TO ORDER
AVAILABLE TO ORDER
AVAILABLE TO ORDER
