Grade 589/3 Filter for Fine Precipitate Retention, 125mm Circle (100 pcs) SKU: 10300211

Quantitative Ashless Filter Paper - 10300211

Environmental and pharmaceutical laboratories running ignition-based assays need ashless paper that meets their method's blank specifications. Acid-washed cellulose construction reduces inorganic residue to levels below 0.01%, meeting the blank requirements of gravimetric analytical methods. As designed, consistent physical properties across the full sheet area support uniform filtration results in both gravity and vacuum applications.

Key Filter Paper Characteristics

• Controlled fiber density balances rapid filtration with complete precipitate capture for efficient quantitative determinations.
• 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.
• Manufactured under controlled acid washing conditions, each sheet delivers consistent ash levels across production lots for method reproducibility.
• Designed for gravimetric determinations where the filter paper is ashed or ignited as part of the analytical measurement step.

If your teaching or research laboratory processes high volumes of routine samples, the documented flow rates above translate directly to throughput. 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

125mm

Flow Speed

Slow

Folded/ Fluted/ Pleated

No

Grade

589/3

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.01%

Nominal Basis Weight (g/ m²)

84g/m²

Pack Count

100

Particle Retention

<2um

Pore Size (µm)

2

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Phosphate Gravimetry - Collects magnesium ammonium phosphate precipitate for ignition to pyrophosphate in soil and fertilizer analysis.
• 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.
• Lead Quantification - Captures lead sulfate precipitate for gravimetric determination in environmental and industrial samples.
• Total Ash Testing - Provides the ultra-low blank needed for accurate ash determination in food, pharmaceutical, and material samples.
• Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.