Grade 541 Ashless Fast Filter Paper, 55mm Circles (100 pcs) SKU: 1541-055

Quantitative Ashless Filter Paper - 1541-055

Analytical laboratories performing routine gravimetric work need filter paper with consistent, documented ash values across every production lot. Acid-washed cellulose construction reduces inorganic residue to levels below 0.01%, meeting the blank requirements of gravimetric analytical methods. On this basis, rigorous quality control at every production stage ensures physical properties align with published grade specifications before distribution.

Key Filter Paper Characteristics

• Tightly controlled manufacturing produces documented ash content that remains consistent across production lots for method reproducibility.
• Controlled fiber density balances rapid filtration with complete precipitate capture for efficient quantitative determinations.
• Basis weight of 82g/m² indicates the fiber mass per unit area that controls retention, flow rate, and wet strength.
• Acid-hardened cellulose resists degradation during prolonged contact with strong reagents, protecting filtrate integrity.
• Particle retention rating of 22um defines the separation threshold for the application, determining which solids are captured and which pass through.

Whether your method requires simple clarification or precise gravimetric determination, the documented specifications above define what this paper delivers. In these cases, fine fiber construction provides the mechanical integrity you need to transfer collected precipitates to the crucible without sample loss. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

Diameter

55mm

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

• Iron Determination - Collects iron hydroxide precipitate for gravimetric determination in ore assay and environmental analysis.
• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.
• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• Total Ash Testing - Provides the ultra-low blank needed for accurate ash determination in food, pharmaceutical, and material samples.
• Calcium Oxalate Analysis - Captures calcium precipitate for ignition to calcium oxide, supporting clinical and water hardness testing.
• Phosphate Gravimetry - Collects magnesium ammonium phosphate precipitate for ignition to pyrophosphate in soil and fertilizer analysis.