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Ahlstrom Filtration 1410-1250
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Ahlstrom Filtration Grade 141 Standard Glass Microfiber Filter, 12.5 cm dia

Glass Microfiber Filter, 12.5 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

  • Manufacturer Part No: 1410-1250
  • SECO Part No: AHL-1410-1250
  • Sold As:
  • Availability: loading

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 : 12.5 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
  • Qualitative analysis
  • Laboratory analysis
  • 100% Pure borosilicate glass
  • Rapid flow rate
  • Fine particle retention 0.7 µm to 3.1 µm
  • High loading capacity
  • Chemical and thermal resistance (up to 500°C)
  • Long shelf life
  • Brilliant white color reflecting more than 96% of visible light

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