Glass Microfiber Filter, 2.5 cm dia, Brilliant White, Grade 141, Standard Grade Type, Circle Format, 0.66 mm Thickness, 3.1 µm Particle Retention in Liquid, 123 g/m2 Nominal Basis Weight, 19 sec/100 ml (Herzberg) Filtration Speed
Ahlstrom 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 is required. Applications for Ahlstrom glass microfiber filters include environmental analysis for water, wastewater, testing of soils, air pollution and monitoring, research and process biochemistry and gravimetric analysis involving ignition of samples. Ahlstrom glass microfiber filters are also found in the filtration of hot gases and liquids and in pre-filtration. This grade offers better filtration speed and a higher loading capacity than an analytical filter paper of similar particle retention. Ahlstrom 141 is particularly recommended for pre-filtration of membrane filters and is also used in combination with Ahlstrom 121 as a highly efficient protective and retentive grade density pre-filter for membrane filters.
Diameter | : | 2.5 cm |
Grade | : | 141 |
Material | : | Glass Microfiber |
Nominal Basis Weight | : | 123 g/m2 |
Particle Retention in Liquid | : | 3.1 µm |
Thickness | : | 0.66 mm |
Typical Water Flow Rate | : | 400 ml/min |
Wet Burst Pressure | : | 17.8 cm |
Filtration Speed | : | 19 sec/100 ml (Herzberg) |
Loading Capacity | : | Very High |
Type | : | Qualitative |
Color | : | Brilliant White |
Format | : | Circle |
Grade Type | : | Standard |
Properties | : | Rapid Flow |
Rapidity Filtration Speed | : | 350 ml/min |
Sheet Caliper | : | 0.66 mm |
Klemm (Capillary Rise) | : | 80 1/16th/min |
Frazier Air Permeability | : | 11 cfm/sq ft |