GVS Filter, Disk, NC, 0.22µm, White, 90mm 25/PK 1214941

Qualitative filter paper disk for laboratory filtration and qualitative analysis. Made from refined pulp and pure cotton linters with an alpha‑cellulose content near 100% and an ash content below 0.06%, it provides low‑ash, hardened performance for medium‑slow filtrations such as monitoring specific contaminants, filtration of fine precipitates, soil and water analysis, and general clarification tasks.

Key Features:

• Diameter: 70 mm
• Grade: 02 (Medium‑Slow filtration)
• Pack quantity: 100 disks per pack
• Retention range: 7–8 µm
• Filtration time (distilled water): 60 seconds
• Thickness: 180 µm
• Ash content: <0.06%

Advantages:

• Low ash content minimizes contamination of filtered samples.
• Medium‑slow retention (7–8 µm) balances fine particle collection with moderate flow rate for analytical separations.
• Hardened paper composition with high alpha‑cellulose content offers improved mechanical strength for handling and common laboratory filtration techniques.