Grade 43 Ashless Filter Paper for Inorganic Analysis, 125mm Circle, 100/Pk SKU: 1443-125

Quantitative Ashless Filter Paper - 1443-125

Trace-level determinations by ignition depend on filter paper with ash content low enough to fall within method-acceptable blank ranges. Certificate of analysis provides lot-specific ash content values for incorporation into method blank calculations and quality records. In sum, quality-controlled production produces filter paper with the documented consistency that reproducible analytical and preparative methods demand.

Key Filter Paper Characteristics

• Pure cellulose fiber matrix combines low inorganic residue with the mechanical integrity needed for careful precipitate transfer.
• Ash content of <0.007% provides the documented blank value specification that quantitative analytical methods require.
• Untreated cellulose construction provides the pure, unmodified surface appropriate for routine filtration and general sample preparation.
• Tightly controlled manufacturing produces documented ash content that remains consistent across production lots for method reproducibility.
• Rated at 16um particle retention, the fiber matrix provides a defined cutoff for consistent separation across analytical batches.

If your teaching or research laboratory processes high volumes of routine samples, the documented flow rates above translate directly to throughput. Acid-washed cellulose removes the inorganic contaminants that would otherwise introduce blank errors in your ignition-based quantitative determinations. 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

Medium Fast

Folded/ Fluted/ Pleated

No

Grade

43

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.007%

Nominal Basis Weight (g/ m²)

95g/m²

Pack Count

100

Particle Retention

16um

Pore Size (µm)

1.5

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.
• Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.
• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.
• Gravimetric Determination - Collects and ignites precipitates for accurate mass measurement with negligible filter blank contribution.
• Iron Determination - Collects iron hydroxide precipitate for gravimetric determination in ore assay and environmental analysis.