Grade 5 Qualitative Filter Paper, Standard, 150mm Circle, 100/Pk SKU: 1005-150

Qualitative Filter Paper - 1005-150

Gravity filtration methods for removing suspended solids require filter paper that seats cleanly in funnels and retains particles consistently. Controlled fiber density produces documented flow rate and retention characteristics that remain consistent across production lots. Documented grade specifications provide laboratories with the technical data needed to select appropriate papers without preliminary testing.

Key Filter Paper Characteristics

• Standard wet strength is sufficient for conventional Buchner funnel and gravity filtration setups at moderate sample volumes.
• Basis weight of 100g/m² indicates the fiber mass per unit area that controls retention, flow rate, and wet strength.
• Manufactured from high-purity cotton linters, qualitative filter paper provides a clean filtration surface with minimal fiber shedding.
• Uniform fiber distribution across the sheet ensures consistent particle retention from edge to center for reproducible filtration results.
• Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.

Your sample preparation workflow benefits from a filter paper whose performance is defined, documented, and consistent from one purchase to the next. Standard cellulose chemistry eliminates the need for specialized disposal procedures your general laboratory filtration generates. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

Diameter

150mm

Flow Speed

Slow

Folded/ Fluted/ Pleated

No

Grade

5

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

0.06%

Nominal Basis Weight (g/ m²)

100g/m²

Pack Count

100

Particle Retention

2.5um

Pore Size (µm)

2.5

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.
• General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.
• Enzyme Clarification - Removes particulates from enzyme solutions before activity assays in biochemistry and industrial testing.
• Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.
• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.