Grade 589/2 Medium Fine Precipitate Filter, 12.7mm Circle (1000 pcs) SKU: 10300102

Quantitative Ashless Filter Paper - 10300102

Environmental and pharmaceutical laboratories running ignition-based assays need ashless paper that meets their method's blank specifications. Cellulose purity and documented ash specifications position ashless paper as the standard medium for ignition-based quantitative determinations. As a result, from fiber selection through final inspection, the manufacturing process ensures every sheet meets the performance specifications of its grade.

Key Filter Paper Characteristics

• Standard construction delivers adequate wet strength for conventional filtration while maintaining economical cost for routine applications.
• Certificate of analysis documents actual ash content per production lot, providing traceability for regulated analytical methods.
• Tightly controlled manufacturing produces documented ash content that remains consistent across production lots for method reproducibility.
• Ashless filter paper provides the documented low residue needed for ignition-based analytical procedures where filter mass affects results.
• At 85g/m² nominal basis weight, the paper provides the mass uniformity needed for reproducible gravimetric determinations.

If your laboratory runs standardized filtration protocols, the lot-level consistency of this filter paper protects your method reproducibility. Ultra-low ash content ensures your gravimetric results reflect captured material, not residue from the filter paper itself. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Diameter

12.7mm

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

• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• Iron Determination - Collects iron hydroxide precipitate for gravimetric determination in ore assay and environmental analysis.
• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.
• Calcium Oxalate Analysis - Captures calcium precipitate for ignition to calcium oxide, supporting clinical and water hardness testing.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.
• Total Ash Testing - Provides the ultra-low blank needed for accurate ash determination in food, pharmaceutical, and material samples.