Avitrolab Grade 131 Glass Microfiber Filter Papers

From $42.95

These Avitrolab Grade 131 Glass Microfiber Filter Papers are binder-free and ideal for use in water and wastewater analysis, gravimetric analysis involving ignition of the sample and filtration of hot gases and liquids. They are recommended for use in environmental applications, biochemical testing, as pre-filters, and as direct sample application pads.

Binder-free glass microfibers feature maximum flow efficiency, fine particle retention, while maintaining a higher loading capacity than cellulose filters. Glass microfibers are chemical and thermal resistant and maintain their operational integrity in the presence of acids, alkalis, organic solvents, and temperatures at or above 500°C.

Key Features

  • 0µm particle retention
  • 25mm sheet caliper
  • Harvesting cells
  • Liquid scintillation
  • Counting/analysis of carbohydrates
  • Method 2530, B (particulate floatables)
  • Inert, no chemical reaction with liquid sample
  • Suitable for use in various standard methods
Specifications for Avitrolab Grade 131 Glass Microfiber Filter Paper
Particle Retention in µm 1
Filtration Speed Herzburg sec/100mls 88
Filtration Speed Rapidity mls/min 77.5
Frazier air permeability (cfm/ft) 2.8
Basis Weight (g/m²) 53
Sheet Caliper (mm) 0.25
Klemm (Capillary Rise) 1/16th/min 45
Wet-burst (cm) 21.6
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Cat # Diameter Units Of Measure Availability Price Quantity
EF8390E
47 mm
  • $59.95
EF8390B
24 mm
  • $42.95
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