Grade 589/1 Filter for Coarse Precipitate Retention, 185mm Circle (100 pcs) SKU: 10300014

Quantitative Ashless Filter Paper - 10300014

Accurate mass-based determinations start with a filter medium whose residue after ignition is controlled, tested, and traceable. Acid-washed cellulose construction reduces inorganic residue to levels below 0.01%, meeting the blank requirements of gravimetric analytical methods. Working in concert, documented grade specifications provide laboratories with the technical data needed to select appropriate papers without preliminary testing.

Key Filter Paper Characteristics

• Controlled ash level at <0.01% ensures inorganic residue after ignition remains within the acceptable range for gravimetric procedures.
• Designed for gravimetric determinations where the filter paper is ashed or ignited as part of the analytical measurement step.
• Acid washing process removes metallic contaminants that could interfere with trace element determinations after ignition.
• Untreated cellulose construction provides the pure, unmodified surface appropriate for routine filtration and general sample preparation.
• Manufactured under controlled acid washing conditions, each sheet delivers consistent ash levels across production lots for method reproducibility.

When your application makes the filter paper part of the measurement, the ash and weight specifications above define its analytical contribution. To support this, ashless certification supports the regulatory compliance documentation your environmental and pharmaceutical methods demand. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

Diameter

185mm

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

• Lead Quantification - Captures lead sulfate precipitate for gravimetric determination in environmental and industrial samples.
• 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.
• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.
• Silica Determination - Captures dehydrated silica for gravimetric analysis in cement, geological, and industrial raw material testing.
• Calcium Oxalate Analysis - Captures calcium precipitate for ignition to calcium oxide, supporting clinical and water hardness testing.