Grade 40 Ashless Filter Paper for Pollution Analysis, 47mm Circle, 100/Pk SKU: 1440-047

Quantitative Ashless Filter Paper - 1440-047

Analytical laboratories performing routine gravimetric work need filter paper with consistent, documented ash values across every production lot. Controlled fiber density balances rapid filtration rates with complete precipitate capture for efficient quantitative determinations. With this in mind, 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.
• Pure cellulose fiber matrix combines low inorganic residue with the mechanical integrity needed for careful precipitate transfer.
• Particle retention rating of 8um defines the separation threshold for the application, determining which solids are captured and which pass through.
• Standard construction delivers adequate wet strength for conventional filtration while maintaining economical cost for routine applications.
• Standard cellulose without surface treatment delivers reliable performance for applications where chemical hardening is not required.

Reporting filtration parameters alongside your analytical results demands documented grade, retention, and lot traceability for reviewer confidence. To support this, 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

47mm

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

• Total Ash Testing - Provides the ultra-low blank needed for accurate ash determination in food, pharmaceutical, and material samples.
• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.
• 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.
• Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.