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Whatman Qualitative Filter Paper: Grade 4 Circles, 100/bx

$43.95
For larger quantities: Request a Quote
MFR:
1004-150
Medex SKU:
WTM-1004-150
Packing Info:
100/bx
Usually Ships:
1 - 2 Business Days
Freight Quote Button:
False

Description

Whatman™ Qualitative Filter Paper: Grade 4 Circles
Filters and retains course particles for monitoring air pollution. Whatman™ Qualitative Filter Paper: Grade 4 Circles are used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.
  • Particle Retention: 25µm
  • Porosity: Coarse
  • Filtration speed: Herzberg, 37 sec.
  • Surface: smooth
  • Extremely fast filtering  with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide
  • Useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis
  • Thickness (Metric) 210μm
  • Diameter (Metric) 150mm
  • Material Cellulose
  • Pore Size (Metric) 20 to 25μm
  • Particle Retention Coarse particles and gelatinous precipitates
  • Format Circle