Grade 40 Ashless Filter Paper for Pollution Analysis, 110mm Circle, 100/Pk SKU: 1440-110

Quantitative Ashless Filter Paper - 1440-110

Analytical laboratories performing routine gravimetric work need filter paper with consistent, documented ash values across every production lot. Tightly controlled manufacturing produces the lot-to-lot consistency that validated gravimetric methods depend on for reproducible results. Consistent physical properties across the full sheet area support uniform filtration results in both gravity and vacuum applications.

Key Filter Paper Characteristics

• Standard construction delivers adequate wet strength for conventional filtration while maintaining economical cost for routine applications.
• Acid-washed cellulose construction produces ash content below 0.01%, meeting the blank value requirements of quantitative gravimetric methods.
• Smooth surface finish facilitates complete precipitate recovery and clean separation from the paper during transfer operations.
• Acid washing process removes metallic contaminants that could interfere with trace element determinations after ignition.
• Controlled fiber density balances rapid filtration with complete precipitate capture for efficient quantitative determinations.

Scaling your method from development to routine production requires paper consistency at every lot, and the specifications above provide that assurance. Uniform fiber density across the sheet area ensures your precipitate capture remains consistent from center to edge. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Diameter

110mm

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

• 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.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.
• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.
• Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.
• Silica Determination - Captures dehydrated silica for gravimetric analysis in cement, geological, and industrial raw material testing.