Cellulose Qualitative Filter Paper, Grade 01, 42mm, Medium Speed, 100/Pk
GVS SKU: FP042DME01QALC01

Featuring a low-ash cellulose medium made from refined pulp and pure cotton linters with a near 100% alpha-cellulose content, this 42mm Grade 01 qualitative filter paper delivers balanced medium retention and flow rate for routine laboratory filtration. The medium-speed circle provides nominal particle retention in the 7 to 11 um range, making it one of the most widely used grades for clarifying liquids and general analytical separations. Each box contains 100 nonsterile circles.

Key Cellulose Media Characteristics

• Manufactured from refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100% for consistent, low-contamination filtration.
• Hydrophilic structure wets readily with aqueous solutions and common laboratory liquids.
• Medium filtration speed balances flow rate against retention for general-purpose use.
• Nominal particle retention of 7 to 11 um suited to fine precipitates and routine clarification.
• Low ash content (less than 0.06%) reduces residue interference in qualitative work.

Key Construction Characteristics

• Material: Cellulose, qualitative grade (Grade 01).
• Format: 42mm diameter circles.
• Sterility: Nonsterile.
• Pack: 100 circles per box.

This grade covers a wide range of laboratory applications and is frequently used for clarifying liquids and separating fine precipitates such as lead sulfate, calcium oxalate, and calcium carbonate. The uniform cellulose structure maintains reproducible retention across the circle, supporting reliable results in qualitative analysis, soil and seed testing, and food analysis.

Color

White

Diameter

42mm

Flow Speed

Medium

Grade

Qualitative

Material

Cellulose

Mesh Format

Circle

Pack Count

100

Particle Retention

7-11 um

Pore Size (µm)

10

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wettability

Hydrophilic

• Liquid Clarification Clarifies cloudy aqueous solutions and routine laboratory liquids for clearer downstream samples.
• Qualitative Analysis Supports qualitative analytical separations where residue weight accuracy is not required.
• Precipitate Filtration Captures fine precipitates such as lead sulfate, calcium oxalate, and calcium carbonate.
• Soil and Seed Testing Serves agricultural soil analysis and seed testing procedures.
• Food Analysis Separates solid foodstuffs from associated or extracting liquids in routine food testing.
• Educational Use Provides a dependable general-purpose filter for teaching and routine laboratory work.