Cellulose Qualitative Filter Paper Discs, Grade 02, 7-8um, 240mm, Medium-Slow, 100/Pk
GVS SKU: FP240DMS02QALC01

Featuring a low-ash, hardened cellulose medium made from refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100%, these 240mm Grade 02 (DMS02) qualitative filter paper discs deliver moderate to slow filtration with a nominal particle retention of 7 to 8 microns. The 190 micron thick paper provides a nominal basis weight of 100 g/m squared and an ash content of less than 0.06% that is not reduced by post-treatment, making it well suited to the routine clarification and analytical separations performed across laboratory workflows. Each pack contains 100 discs.

Key Cellulose Media Characteristics

• Nominal particle retention of 7 to 8 microns for reliable capture of fine precipitates
• Made from refined pulp and pure cotton linters with nearly 100% alpha-cellulose content
• Slightly more retentive and absorbent than Grade 01, providing moderate to slow filtration speed
• Ash content of less than 0.06% that is not reduced by post-treatment
• Hardened, low-ash structure that supports consistent qualitative analytical results

Key Construction Characteristics

• 240mm diameter circular disc format for use in standard funnels
• 190 micron nominal thickness with a nominal basis weight of 100 g/m squared
• Nonsterile, supplied 100 discs per pack
• Often used as a folded filter in an analytical funnel

This Grade 02 paper maintains consistent retention and flow behavior across repeated filtrations, helping protect sample integrity during qualitative analysis. Its low ash content minimizes contamination of collected precipitates, while the hardened structure withstands routine handling. The result is dependable performance for monitoring contaminants, clarifying liquids, and recovering fine particulate.

Color

White

Diameter

240mm

Flow Speed

Medium-Slow

Grade

DMS02

Hardened (Yes/ No)

Yes

Material

Cellulose

Mesh Format

Circle

Nominal Ash Content (%)

<0.06

Nominal Basis Weight (g/ m²)

100

Nominal Thickness (µm)

190

Pack Count

100

Particle Retention

7-8 µm

Pore Size (µm)

7-8

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wettability

Hydrophilic

• Fine Precipitate Filtration Captures fine precipitates such as lead dioxide, calcium fluoride, nickel sulphide, and zinc sulphide with its 7 to 8 micron nominal retention.
• Atmospheric Contaminant Monitoring Suited to monitoring specific contaminants in the atmosphere where moderate retention and absorbency are required.
• Soil Analysis Provides reliable clarification and separation for soil testing and related environmental sample preparation.
• Qualitative Analytical Separations Supports routine qualitative analytical techniques used to determine and identify materials.
• Liquid Clarification Clarifies laboratory liquids using a medium-slow flow that balances retention with throughput.
• Folded Funnel Filtration Frequently used as a folded filter in an analytical funnel for general laboratory filtration.