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Whatman™ 934-AH RTU Glass Microfiber Filters

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Manufacturer: whatman™  9907-055

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Catalog No. 09-924-452

  • / Pack of 100 Each

Description & Specifications


Material Borosilicate Glass
Diameter (Metric) Outside 5.5cm
For Use With (Application) Monitoring of rivers, lakes and coastal waters
Flow Rate 47 sec./100mL
Grade 934-AH RTU
Particle Retention 1.5μm
Temperature (Metric) Max 550°C
Thickness (English) 0.017 in.
Thickness (Metric) 435μm
Diameter (English) Outside 2.1 in.
Temperature (English) Maximum 1022°F

Whatman 934-AH, the most widely used filter for Total Suspended Solids Analysis, is now available in a time-saving, Ready-To-Use (RTU) format. The 934-AH RTU contains the trusted binder-free, high purity borosilicate glass microfiber filter mentioned in Standard Methods.

  • Use the pre–washed, pre–weighed filter immediately—no need to pre–treat
  • Each RTU filter is packaged within an aluminum pan with the filter weight clearly printed on a heat-resistant label
  • Efficient: Superior fine particle retention at high flowrates
  • High loading capacity: Capable of processing very turbid samples
  • High temperature tolerant: Can be used with temperatures up to 550°C

The 934-AH RTU meets the requirements under the latest edition of Standard Methods 2540D for determining total suspended solids in water. It is used for a wide range of water monitoring applications including:

  • Monitoring of rivers, lakes and coastal waters
  • Purified discharge of wastewater treatment plants
  • Monitoring discharge water from industrial plants