Grade 40 Ashless Filter Paper for Pollution Analysis, 460x570mm Sheet, 100/Pk SKU: 1440-917

Quantitative Ashless Filter Paper - 1440-917

Classical analytical methods requiring filter ignition with collected precipitate demand documented ash values verifiable through every production lot. Certificate of analysis provides lot-specific ash content values for incorporation into method blank calculations and quality records. Lot-level verification of retention, thickness, and ash content ensures predictable performance when scaling from method development to routine analysis.

Key Filter Paper Characteristics

• Smooth surface finish facilitates complete precipitate recovery and clean separation from the paper during transfer operations.
• At 95g/m² nominal basis weight, the paper provides the mass uniformity needed for reproducible gravimetric determinations.
• 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.
• Manufactured under controlled acid washing conditions, each sheet delivers consistent ash levels across production lots for method reproducibility.

If your laboratory supports multiple research groups with varying filtration needs, this paper's broad applicability simplifies your procurement process. In this context, ultra-low ash content ensures your gravimetric results reflect captured material, not residue from the filter paper itself. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Dimensions

460 x 570mm

Flow Speed

Medium

Folded/ Fluted/ Pleated

No

Grade

40

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.007%

Nominal Basis Weight (g/ m²)

95g/m²

Pack Count

100

Particle Retention

8um

Pore Size (µm)

8

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Iron Determination - Collects iron hydroxide precipitate for gravimetric determination in ore assay and environmental analysis.
• Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.
• Nickel Determination - Retains nickel dimethylglyoxime precipitate for ignition-based quantification in alloy and plating bath testing.
• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.
• Phosphate Gravimetry - Collects magnesium ammonium phosphate precipitate for ignition to pyrophosphate in soil and fertilizer analysis.