Filter Paper (Round) Whatman (Pack of 100)

Whatman round filter paper is supplied in a pack of 100 sheets for compatible laboratory filtration procedures. Choose the diameter and grade required by your method and filtration apparatus.

Keep the appropriate grade ready at your sample-preparation station, matching the paper size to the funnel or support before starting filtration.

Product options

• Listed brand: Whatman.
• Shape: round.
• Quantity: pack of 100 sheets.
• Diameter options: 90 mm, 125 mm and 150 mm.
• Grade options: 1, 2, 4, 40, 41 and 42.
• Material: cellulose, as listed.

Choosing the grade

Different grades are not interchangeable. Confirm the manufacturer's intended application, particle-retention specification, flow characteristics and ash content for the selected grade. Do not assume every option is intended for the same qualitative or quantitative procedure.

Applications

Compatible laboratory filtration, sample preparation and teaching practicals. Select the grade according to the sample, separation requirements and validated analytical method.

Compatibility and handling

Check chemical compatibility and the required support arrangement before use. Particle-retention values, filtration speed and wet-strength ratings are not provided in this listing. Sterility and suitability for sterile filtration are not documented. Store clean and dry according to the packaging instructions and avoid contaminating the paper during handling.