Cellulose Filter Paper Discs, 7-8um Retention, Medium-Slow, 185mm, Qualitative, 100/Pk
GVS SKU: FP185DMS02QALC01

Featuring a refined alpha-cellulose medium grade DMS02, these 185mm qualitative filter paper discs deliver a medium-slow filtration speed with a nominal particle retention of 7 to 8 um. Built from refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100 percent, the paper provides reliable particle retention and absorbency for routine analytical and preparative separations. Each disc measures 190 um thick with a nominal basis weight of 100 g/m2 and an ash content below 0.06 percent that is not reduced by post-treatment.

Key Cellulose Media Characteristics

• Nominal particle retention of 7 to 8 um delivers a defined cutoff for general filtration and fine precipitate capture.
• Medium-slow filtration speed offers greater retentiveness and absorbency than faster qualitative grades.
• Refined pulp and pure cotton linters provide an alpha-cellulose content of nearly 100 percent for consistent performance.
• Low ash content below 0.06 percent minimizes residual contamination during analytical work.
• 190 um thickness supports gentle precipitate handling and folding into analytical funnels.

Key Construction Characteristics

• 185mm diameter circles cut to fit standard funnels and filtration setups.
• Hydrophilic cellulose construction wets readily for gravity and vacuum filtration.
• Supplied nonsterile in a pack of 100 discs.

This grade maintains repeatable particle retention across analytical batches, supporting accurate clarification of cloudy suspensions and fine precipitates. The absorbent, medium-slow structure protects sample integrity during routine qualitative separations, soil testing, and atmospheric contaminant monitoring.

Color

White

Diameter

185mm

Flow Speed

Medium-Slow

Grade

DMS02

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 um

Pore Size (µm)

7

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wettability

Hydrophilic

Whatman Equivalent

Grade 2

• Fine Precipitate Filtration The 7 to 8 um retention captures fine precipitates during qualitative analytical separations and routine laboratory clarification.
• Soil Analysis Medium-slow flow and absorbency suit soil testing and agricultural sample preparation workflows.
• Atmospheric Contaminant Monitoring The paper is used for monitoring specific contaminants in the atmosphere via dust collection and stain measurement.
• General Laboratory Clarification Reliable retention clarifies cloudy suspensions and liquids in everyday filtration tasks.
• Analytical Funnel Filtration The thickness allows folding as a fluted filter for use in analytical funnels.
• Food and Inorganic Analysis Low ash cellulose media supports food analysis and inorganic separation procedures.