Grade 589/1 1/2 Filter for Coarse Precipitate Retention, Folded, 150mm (100 pcs) SKU: 10300045

Quantitative Ashless Filter Paper - 10300045

Gravimetric procedures in regulated laboratories require documented ash content that can be reported alongside analytical results for compliance verification. Acid-washed cellulose construction reduces inorganic residue to levels below 0.01%, meeting the blank requirements of gravimetric analytical methods. Because of this, from fiber selection through final inspection, the manufacturing process ensures every sheet meets the performance specifications of its grade.

Key Filter Paper Characteristics

• Controlled fiber density balances rapid filtration with complete precipitate capture for efficient quantitative determinations.
• Tightly controlled manufacturing produces documented ash content that remains consistent across production lots for method reproducibility.
• Smooth surface finish facilitates complete precipitate recovery and clean separation from the paper during transfer operations.
• Pure cellulose fiber matrix combines low inorganic residue with the mechanical integrity needed for careful precipitate transfer.
• Untreated cellulose construction provides the pure, unmodified surface appropriate for routine filtration and general sample preparation.

Maintaining accreditation requires documented traceability at every step, and the grade specifications above support your audit readiness. Consistent lot-to-lot ash values mean your validated gravimetric method stays valid without recalibrating blank corrections between purchases. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Diameter

150mm

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

Particle Retention

12-25um

Pore Size (µm)

12.0-25.0

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.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.
• Nickel Determination - Retains nickel dimethylglyoxime precipitate for ignition-based quantification in alloy and plating bath testing.
• Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.
• Gravimetric Determination - Collects and ignites precipitates for accurate mass measurement with negligible filter blank contribution.
• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.