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FIL4182 Display Image
FIL4182 Display Image
FIL4182 Display Image

Whatman Grade 934-AH RTU Glass Microfiber Filters for volatile pre-weighed 42.5mm

Code: FIL4182 D2-84

Cytiva’s Whatman glass microfiber filter papers in grade 934-AH RTU have been pre-washed, dried (or ignited), cooled, desiccated and weighed, which eliminates the pre-treating steps that are otherw...

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Cytiva’s Whatman glass microfiber filter papers in grade 934-AH RTU have been pre-washed, dried (or ignited), cooled, desiccated and weighed, which eliminates the pre-treating steps that are otherwise required by the US EPA Laboratory Standard Method 2540 parts C, D, and E. These glass microfiber filter papers are widely used for dissolved, suspended and volatiles solids analysis, and also have fine particle retention of 1.5µm at high flow rates to process heavy, turbid samples. 934-AH RTU filter family:

  • 934-AH RTU for Suspended and Dissolved Solids – pre-washed, dried, cooled, and weighed filters with certified mass loss between washing and drying steps of the lesser of less than 0.5mg or 4% in accordance with US EPA Lab Standard Method 2540 parts C and D
  • RTU for Volatiles – pre-washed, pre-weighed and pre-fired at 550°C aligned to US EPA Laboratory Standard Method 2540 parts C, D, and E
  • RTU Double Weigh – drying, cooling and weighing steps repeated twice for customers with the highest regulatory concern

Whatman Grade 934-AH Glass Microfiber Filter Paper
Nominal air flow rate, s/100mL/in23.7
Nominal basis weight, g/m264
Max recommended temp, °C550
Typical particle retention in liquid, µm1.5
Typical water flow rate, mL/min341