Grade 50 Filter Paper, Thin, 150mm Circle, 100/Pk SKU: 1450-150

Quantitative Ashless Filter Paper - 1450-150

Trace-level determinations by ignition depend on filter paper with ash content low enough to fall within method-acceptable blank ranges. Tightly controlled manufacturing produces the lot-to-lot consistency that validated gravimetric methods depend on for reproducible results. Each sheet reflects production standards where fiber density, thickness, and retention characteristics are verified before lot release.

Key Filter Paper Characteristics

• Nominal basis weight of 115g/m² reflects the fiber density that determines flow rate, retention, and mechanical handling characteristics.
• Acid washing process removes metallic contaminants that could interfere with trace element determinations after ignition.
• Manufactured under controlled acid washing conditions, each sheet delivers consistent ash levels across production lots for method reproducibility.
• Acid-washed cellulose construction produces ash content below 0.01%, meeting the blank value requirements of quantitative gravimetric methods.
• Hardened fiber matrix maintains dimensional stability through hot acid washing and aggressive chemical processing steps.

If your teaching or research laboratory processes high volumes of routine samples, the documented flow rates above translate directly to throughput. Ultra-low ash content ensures your gravimetric results reflect captured material, not residue from the filter paper itself. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

Diameter

150mm

Flow Speed

Slow

Folded/ Fluted/ Pleated

No

Grade

50

Hardened (Yes/ No)

Yes

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.015%

Nominal Basis Weight (g/ m²)

115g/m²

Pack Count

100

Particle Retention

2.7um

Pore Size (µm)

2.7

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• Nickel Determination - Retains nickel dimethylglyoxime precipitate for ignition-based quantification in alloy and plating bath 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.
• Calcium Oxalate Analysis - Captures calcium precipitate for ignition to calcium oxide, supporting clinical and water hardness testing.
• Iron Determination - Collects iron hydroxide precipitate for gravimetric determination in ore assay and environmental analysis.