Cellulose Quantitative Filter Paper Discs, 25-30um, 110mm, Ashless, Very Fast, 100/Pk
GVS SKU: FP110DSL45QANC01

Featuring an ashless cellulose medium with a very fast filtration speed, these quantitative filter paper discs deliver rapid clarification of coarse and gelatinous precipitates while maintaining the low background required for gravimetric work. Each disc measures 110mm in diameter with a nominal particle retention of 25 to 30 microns, a thickness of 210 microns, and a basis weight of 85 g/m2. The ash content stays below 0.007%, so the paper introduces negligible inorganic residue when the filter is ashed and weighed.

Key Cellulose Media Characteristics

• Ashless quantitative grade with an ash content below 0.007% for critical gravimetric analysis
• Very fast filtration speed suited to coarse particles and gelatinous precipitates
• Nominal particle retention of 25 to 30 microns
• 210 micron thickness and 85 g/m2 basis weight provide loading capacity and handling strength
• Hydrophilic cellulose structure wets readily for consistent flow

Key Construction Characteristics

• Pure cellulose disc format, 110mm diameter
• Nonsterile, supplied 100 discs per box
• Suitable for Buchner funnels and filtration under pressure

The defined 25 to 30 micron retention provides a consistent cutoff for reproducible separation across analytical batches. The very fast flow rate processes heavily loaded or gelatinous samples efficiently, while the low ash content preserves sample integrity through ashing and weighing steps.

Color

White

Diameter

110mm

Flow Speed

Very Fast

Grade

DSL45

Material

Cellulose

Mesh Format

Disc

Nominal Ash Content (%)

<0.007

Nominal Basis Weight (g/ m²)

85

Nominal Thickness (µm)

210

Pack Count

100

Particle Retention

25-30 µm

Pore Size (µm)

25-30

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wettability

Hydrophilic

• Coarse Precipitate Filtration The very fast flow and 25-30um retention rapidly separate coarse and gelatinous precipitates such as metal hydroxides.
• Gravimetric Analysis Ash content below 0.007% allows the paper to be ashed and weighed with negligible inorganic residue.
• Sample Prefiltration High loading capacity clears heavily loaded samples before finer downstream filtration steps.
• Environmental Sample Prep Fast clarification supports preparation of soil and similar samples for downstream metals analysis.
• Routine Laboratory Clarification Rapid filtration of solutions where fine particle capture is not the primary requirement.
• Buchner Funnel Filtration Mechanical strength suits the disc to vacuum filtration and filtration under pressure.