GR 541 40cm 100/Pk SKU: 1541-400

Quantitative Ashless Filter Paper - 1541-400

Classical analytical methods requiring filter ignition with collected precipitate demand documented ash values verifiable through every production lot. Controlled fiber density balances rapid filtration rates with complete precipitate capture for efficient quantitative determinations. In combination, standardized manufacturing protocols produce papers with retention and flow characteristics that remain constant from the first batch to the last.

Key Filter Paper Characteristics

• Acid-washed cellulose construction produces ash content below 0.01%, meeting the blank value requirements of quantitative gravimetric methods.
• Tightly controlled manufacturing produces documented ash content that remains consistent across production lots for method reproducibility.
• Designed for gravimetric determinations where the filter paper is ashed or ignited as part of the analytical measurement step.
• Manufactured to a basis weight of 82g/m², each sheet delivers the documented mass consistency that gravimetric methods require.
• Surface hardening process delivers a paper that maintains its structural integrity through extended chemical exposure.

If your laboratory supports multiple research groups with varying filtration needs, this paper's broad applicability simplifies your procurement process. For applications like these, ashless certification supports the regulatory compliance documentation your environmental and pharmaceutical methods demand. 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

400mm

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

Particle Retention

22um

Pore Size (µm)

20.0-25.0

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Calcium Oxalate Analysis - Captures calcium precipitate for ignition to calcium oxide, supporting clinical and water hardness testing.
• Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.
• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.
• Lead Quantification - Captures lead sulfate precipitate for gravimetric determination in environmental and industrial samples.
• Iron Determination - Collects iron hydroxide precipitate for gravimetric determination in ore assay and environmental analysis.