Cellulose Qualitative Filter Paper Discs, 240mm, 3um Retention, Extra Slow, Grade 05, 100/Pk
GVS SKU: FP240DXS05QALC01

Featuring a low-ash hardened cellulose medium made from refined pulp and pure cotton linters, these 240mm qualitative filter paper discs deliver the highest degree of fine particle retention in the GVS qualitative range. Designated Grade DXS05 (Grade 05), this extra-slow filtration paper provides a nominal particle retention of 3um, making it well suited to demanding clarification work. Each disc measures 240mm in diameter, and the discs are supplied 100 per pack.

Key Cellulose Media Characteristics

• Naturally hydrophilic cellulose structure wets readily with aqueous samples
• Provides the lowest filtration rate and maximum fine particle retention in the qualitative range
• Low ash content suited to qualitative analytical techniques
• Hardened construction for improved handling and wet strength
• Manufactured from refined pulp and pure cotton linters with high alpha-cellulose content

Key Construction Characteristics

• Material: cellulose (Grade 05, DXS05 designation)
• Nominal particle retention: 3um
• Disc diameter: 240mm
• Nonsterile
• Supplied 100 discs per pack

This extra-slow grade maintains consistent retention performance when clarifying cloudy suspensions and other difficult samples. It is well matched to water and soil analysis where very fine precipitates must be captured. Reliable, low-ash construction supports clean sample preparation across routine qualitative workflows.

Diameter

240mm

Flow Speed

Extra Slow

Grade

DXS05 (Grade 05)

Hardened (Yes/ No)

Yes

Material

Cellulose

Nominal Ash Content (%)

<0.06

Pack Count

100

Particle Retention

3um

Pore Size (µm)

3

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wettability

Hydrophilic

• Clarification of Cloudy Suspensions The extra-slow flow and fine 3um retention make these discs effective for clarifying difficult cloudy liquids and suspensions.
• Water Analysis Captures very fine particulates in water samples for downstream qualitative evaluation.
• Soil Analysis Supports separation of fine precipitates and particulates in soil testing procedures.
• Fine Precipitate Filtration Retains extra fine-grained precipitates such as barium sulphate and cupreous oxide.
• Wine Clarification Frequently specified for clarifying wine where fine particle removal is required.
• General Qualitative Analysis Provides high fine-particle retention for qualitative analytical techniques used to identify materials.