Cellulose Qualitative Filter Paper Discs, 320mm, Medium Speed, Low Ash, Nonsterile, 100/Pk
GVS SKU: FP320DME01QALC01

Featuring a low-ash cellulose medium made from refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100%, these 320mm qualitative filter paper discs deliver medium retention and medium flow rate for a broad spectrum of routine laboratory filtration. Manufactured to Grade DME01, the paper provides a particle retention range of 7 to 11 microns and is widely used for clarifying liquids and separating fine precipitates. Each pack contains 100 discs.

Key Cellulose Media Characteristics

• Made from refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100% for consistent, diverse filtration properties.
• Low ash content of less than 0.06%, not reduced by post-treatment, minimizing contamination of filtrate.
• Medium particle retention of 7 to 11 microns balanced with a medium flow rate.
• Naturally hydrophilic for rapid wetting and efficient aqueous filtration.
• Suited to clarifying liquids and rapid filtration of fine precipitates such as lead sulfate, calcium oxalate, and calcium carbonate.

Key Construction Characteristics

• Cellulose qualitative filter paper in a large 320mm diameter disc format.
• Grade DME01, medium speed filtration, low ash.
• Supplied nonsterile, 100 discs per pack.

These discs provide reliable, reproducible separation across routine analytical, agricultural, food, and educational workflows. The high alpha-cellulose construction and low ash content help maintain sample integrity by limiting background contamination. Medium retention and flow make this the most versatile grade for everyday clarification tasks.

Color

White

Diameter

320mm

Flow Speed

Medium

Grade

DME01

Material

Cellulose

Mesh Format

Disc

Nominal Ash Content (%)

<0.06

Pack Count

100

Particle Retention

7-11 um

Pore Size (µm)

7-11

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wettability

Hydrophilic

• Routine Liquid Clarification Removes suspended solids from aqueous samples at a balanced medium flow rate for general laboratory use.
• Fine Precipitate Filtration Captures fine precipitates such as lead sulfate, calcium oxalate, and calcium carbonate for qualitative analytical separations.
• Soil Analysis and Seed Testing Supports agricultural sample preparation including soil analysis and seed testing procedures.
• Food Analysis Separates solid foodstuffs from associated or extracting liquids in routine food industry techniques.
• Air Pollution Monitoring Collects atmospheric dust from airflow for stain-intensity measurement in air quality assessment.
• Educational Laboratory Use Provides a versatile, economical medium for teaching simple qualitative analytical separations.