Grade 589/2 Medium Fine Precipitate Filter, 125mm Circle (100 pcs) SKU: 10300111

Quantitative Ashless Filter Paper - 10300111

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. Consistent physical properties across the full sheet area support uniform filtration results in both gravity and vacuum applications.

Key Filter Paper Characteristics

• 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.
• Controlled fiber density balances rapid filtration with complete precipitate capture for efficient quantitative determinations.
• Manufactured under controlled acid washing conditions, each sheet delivers consistent ash levels across production lots for method reproducibility.
• At 4-12um rated retention, the fiber matrix captures particles above the threshold while allowing smaller materials to pass through.

When your budget requires balancing performance with cost efficiency, the documented consistency above ensures you're not paying for premium features you don't need. Here, premium cellulose purity reduces the blank correction calculations your gravimetric procedures would otherwise require. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

Diameter

125mm

Flow Speed

Medium

Folded/ Fluted/ Pleated

No

Grade

589/2

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.01%

Nominal Basis Weight (g/ m²)

85g/m²

Pack Count

100

Particle Retention

4-12um

Pore Size (µm)

4.0-12.0

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.
• Phosphate Gravimetry - Collects magnesium ammonium phosphate precipitate for ignition to pyrophosphate in soil and fertilizer analysis.
• Calcium Oxalate Analysis - Captures calcium precipitate for ignition to calcium oxide, supporting clinical and water hardness testing.
• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• Nickel Determination - Retains nickel dimethylglyoxime precipitate for ignition-based quantification in alloy and plating bath testing.
• Lead Quantification - Captures lead sulfate precipitate for gravimetric determination in environmental and industrial samples.