Grade 589/2 Medium Fine Precipitate Filter, 110mm 1/2 Folded (100 pcs) SKU: 10300143

Quantitative Ashless Filter Paper - 10300143

Quantitative methods where the filter is ashed alongside the sample require documented, ultra-low residue to protect analytical accuracy. Fine fiber matrix delivers the mechanical integrity needed to transfer collected precipitates from funnel to crucible without loss. In sum, standardized manufacturing protocols produce papers with retention and flow characteristics that remain constant from the first batch to the last.

Key Filter Paper Characteristics

• Non-strengthened grades deliver consistent retention at the economical price point that high-volume routine methods demand.
• Tightly controlled manufacturing produces documented ash content that remains consistent across production lots for method reproducibility.
• Certificate of analysis documents actual ash content per production lot, providing traceability for regulated analytical methods.
• Designed for gravimetric determinations where the filter paper is ashed or ignited as part of the analytical measurement step.
• Nominal ash content of <0.01% ensures minimal inorganic residue after ignition, protecting the accuracy of gravimetric determinations.

If your workflow includes both routine clarification and specialized quantitative methods, stocking this versatile grade reduces your inventory complexity. For exactly this reason, ultra-low ash content ensures your gravimetric results reflect captured material, not residue from the filter paper itself. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Diameter

110mm

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

• Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.
• Calcium Oxalate Analysis - Captures calcium precipitate for ignition to calcium oxide, supporting clinical and water hardness testing.
• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.
• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• Silica Determination - Captures dehydrated silica for gravimetric analysis in cement, geological, and industrial raw material testing.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.