Multigrade GMF 150 Glass Fiber Filters

Whatman GMF 150 is a multilayer glass microfiber filter with a coarse top layer meshed with a finer layer. Manufactured from 100% borosilicate glass microfiber, the filter is binder free. It is an excellent prefilter for higher particulate loading capacity with faster flow rates, extending the life of the filter.
GMF 150 represents a new dimension in separation science leading to faster and more cost-effective filtration. In application, the GMF 150 traps larger particles in the pores
or on the surface of the coarse layer while the medium sized particles are caught in the interface meshing. The smaller particles are netted in the interstices of the fine layer.
• Typical properties

  GMF 150 1 µm GMF 150 2 µm
Description Multilayer Multilayer
Typical particle retention in liquid (µm)1 > 1 > 2
Nominal air flow (s/100 mL/in²) 4 1.6
Nominal thickness (µm) 730 750
Nominal basis weight (g/m²) 145 145
Typical water flow rate (mL/min)2 222 887
Maximum recommended temperature (°C) 550 550

• Ordering information – glass microfiber filter papers with binder - Filter Circles

Dimensions (mm) Catalog number Quantity/Pack
1 µm 2 µm
47 1841-047 1842-047 40
90 1841-090 1842-090 20