Whatman Grade 934-AH RTU Filter for Total Suspended Solids Analysis, 47 mm Circle, 100 Pack, 9907-047

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 have fine particle retention of 1.5 µm at high flow rates to process heavy, turbid samples.

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 0.5 mg or 4% in accordance with US EPA Lab Standard Method 2540 parts C and D. (Most filters come weighed to four decimal places, however a version of the 47 mm glass microfiber filter can be measured to five decimal places if needed.)

The pre-weighed glass microfiber filter papers are packaged with a barcoded aluminum pan noting the filter paper weight.

What are Grade 934-AH RTU (Ready-to-Use) Whatman GMF Filter Papers Used for?

Whatman 934-AH ready to use (RTU) glass microfiber filter papers are widely used for dissolved, suspended and volatiles solid analysis. They are also used for a wide range of industrial and environmental water monitoring applications including the monitoring of rivers, lakes and coastal waters, as well as analyzing purified discharge of wastewater treatment plants and monitoring discharge water from industrial plants.