Grade 541 Ashless Fast Filter Paper, 42.5mm Circles (100 pcs) SKU: 1541-042

Quantitative Ashless Filter Paper - 1541-042

Quantitative methods where the filter is ashed alongside the sample require documented, ultra-low residue to protect analytical accuracy. Controlled fiber density balances rapid filtration rates with complete precipitate capture for efficient quantitative determinations. Lot-level verification of retention, thickness, and ash content ensures predictable performance when scaling from method development to routine analysis.

Key Filter Paper Characteristics

• Controlled fiber density balances rapid filtration with complete precipitate capture for efficient quantitative determinations.
• Ash content of <0.006% provides the documented blank value specification that quantitative analytical methods require.
• Strengthening treatment preserves paper structure through extended filtration runs where continuous wetting would weaken standard grades.
• Pure cellulose fiber matrix combines low inorganic residue with the mechanical integrity needed for careful precipitate transfer.
• Designed for gravimetric determinations where the filter paper is ashed or ignited as part of the analytical measurement step.

If your laboratory runs standardized filtration protocols, the lot-level consistency of this filter paper protects your method reproducibility. Fine fiber construction provides the mechanical integrity you need to transfer collected precipitates to the crucible without sample loss. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Diameter

42.5mm

Flow Speed

Fast

Folded/ Fluted/ Pleated

No

Grade

541

Hardened (Yes/ No)

Yes

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.006%

Nominal Basis Weight (g/ m²)

82g/m²

Pack Count

100

Particle Retention

22um

Pore Size (µm)

20.0-25.0

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Lead Quantification - Captures lead sulfate precipitate for gravimetric determination in environmental and industrial samples.
• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.
• Phosphate Gravimetry - Collects magnesium ammonium phosphate precipitate for ignition to pyrophosphate in soil and fertilizer analysis.
• Iron Determination - Collects iron hydroxide precipitate for gravimetric determination in ore assay and environmental analysis.
• Gravimetric Determination - Collects and ignites precipitates for accurate mass measurement with negligible filter blank contribution.