Grade 589/1 Filter for Coarse Precipitate Retention, 125mm Circle (100 pcs) SKU: 10300011

Quantitative Ashless Filter Paper - 10300011

Gravimetric analysis demands filter paper that contributes virtually no residue after ignition, ensuring mass measurements reflect the sample alone. Controlled washing process removes metallic and mineral contaminants that would otherwise contribute measurable mass after ignition. Documented grade specifications provide laboratories with the technical data needed to select appropriate papers without preliminary testing.

Key Filter Paper Characteristics

• Tightly controlled manufacturing produces documented ash content that remains consistent across production lots for method reproducibility.
• Particle retention rating of 12-25um defines the separation threshold for the application, determining which solids are captured and which pass through.
• Pure cellulose fiber matrix combines low inorganic residue with the mechanical integrity needed for careful precipitate transfer.
• Acid-washed cellulose construction produces ash content below 0.01%, meeting the blank value requirements of quantitative gravimetric methods.
• Controlled fiber density balances rapid filtration with complete precipitate capture for efficient quantitative determinations.

If your teaching or research laboratory processes high volumes of routine samples, the documented flow rates above translate directly to throughput. Consistent lot-to-lot ash values mean your validated gravimetric method stays valid without recalibrating blank corrections between purchases. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Diameter

125mm

Flow Speed

Fast

Folded/ Fluted/ Pleated

No

Grade

589/1

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.01%

Nominal Basis Weight (g/ m²)

80g/m²

Pack Count

100

Particle Retention

12-25um

Pore Size (µm)

12.0-25.0

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.
• Gravimetric Determination - Collects and ignites precipitates for accurate mass measurement with negligible filter blank contribution.
• Phosphate Gravimetry - Collects magnesium ammonium phosphate precipitate for ignition to pyrophosphate in soil and fertilizer analysis.
• Lead Quantification - Captures lead sulfate precipitate for gravimetric determination in environmental and industrial samples.
• 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.