Grade 1 Qualitative Filter Paper, Standard, 30mm Circle, 100/Pk SKU: 1001-329

Qualitative Filter Paper - 1001-329

General clarification and sample preparation workflows require a cellulose filter paper with predictable performance across varying sample types. Natural cellulose wettability eliminates the pre-wetting step required by hydrophobic membranes in aqueous sample filtration. Taken together, quality-controlled production produces filter paper with the documented consistency that reproducible analytical and preparative methods demand.

Key Filter Paper Characteristics

• Standard construction delivers adequate wet strength for conventional filtration while maintaining economical cost for routine applications.
• Particle retention rating of 11um defines the separation threshold for the application, determining which solids are captured and which pass through.
• Compatible with standard glass and plastic filter funnels, qualitative paper integrates into existing gravity filtration setups without modification.
• Nominal ash content of 0.06% ensures minimal inorganic residue after ignition, protecting the accuracy of gravimetric determinations.
• Standard qualitative cellulose filter paper provides reliable particle retention for gravity and vacuum filtration across routine laboratory workflows.

When your analytical procedure specifies a particular grade, the retention and purity characteristics documented above confirm method compliance. In particular, standard cellulose chemistry eliminates the need for specialized disposal procedures your general laboratory filtration generates. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

Diameter

30mm

Flow Speed

Medium

Folded/ Fluted/ Pleated

No

Grade

1

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

0.06%

Nominal Basis Weight (g/ m²)

87g/m²

Particle Retention

11um

Pore Size (µm)

11

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Precipitation Recovery - Collects insoluble reaction products on the paper surface for subsequent washing and downstream analysis.
• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.
• Paint and Coatings QC - Removes gels and undispersed pigment from coating samples prior to color measurement and viscosity testing.
• Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.
• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
• Soil Extract Filtration - Clarifies soil slurries for nutrient and pH testing, removing fine particles that interfere with analysis.