Grade 589/2 Medium Fine Precipitate Filter, 150mm Circle (100 pcs) SKU: 10300112

Quantitative Ashless Filter Paper - 10300112

Environmental and pharmaceutical laboratories running ignition-based assays need ashless paper that meets their method's blank specifications. Fine fiber matrix delivers the mechanical integrity needed to transfer collected precipitates from funnel to crucible without loss. Controlled manufacturing delivers the documented retention, flow rate, and physical consistency that analytical and preparative filtration methods require.

Key Filter Paper Characteristics

• Certificate of analysis documents actual ash content per production lot, providing traceability for regulated analytical methods.
• Pure cellulose fiber matrix combines low inorganic residue with the mechanical integrity needed for careful precipitate transfer.
• Basis weight of 85g/m² indicates the fiber mass per unit area that controls retention, flow rate, and wet strength.
• Tightly controlled manufacturing produces documented ash content that remains consistent across production lots for method reproducibility.
• Manufactured under controlled acid washing conditions, each sheet delivers consistent ash levels across production lots for method reproducibility.

If you're transitioning from qualitative screening to quantitative gravimetric work, the documented ash content above confirms this paper's suitability. Certificate-backed ash specifications provide the documented evidence your quality auditors require for gravimetric method validation. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Diameter

150mm

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

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