Quantitative Ashless Filter Paper, Fast, 20-25 um, 110mm, 100/Pk SKU: CF15002

Quantitative Ashless Filter Paper - CF15002

Gravimetric analysis demands filter paper that contributes virtually no residue after ignition, ensuring mass measurements reflect the sample alone. Methods specifying filter ignition with collected precipitate demand ash contributions that remain negligible and predictable across production lots. Lot-level verification of retention, thickness, and ash content ensures predictable performance when scaling from method development to routine analysis.

Key Filter Paper Characteristics

• Non-hardened paper balances effective particle retention with economical unit cost for high-volume routine laboratory use.
• Smooth surface finish facilitates complete precipitate recovery and clean separation from the paper during transfer operations.
• Acid-washed cellulose construction produces ash content below 0.01%, meeting the blank value requirements of quantitative gravimetric methods.
• Nominal basis weight of 80±5g/m² reflects the fiber density that determines flow rate, retention, and mechanical handling characteristics.
• Certificate of analysis documents actual ash content per production lot, providing traceability for regulated analytical methods.

Maintaining accreditation requires documented traceability at every step, and the grade specifications above support your audit readiness. To meet this need, acid-washed cellulose removes the inorganic contaminants that would otherwise introduce blank errors in your ignition-based quantitative determinations. 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.

Capacity

1.5mL

Diameter

110mm

Flow Speed

Fast

Folded/ Fluted/ Pleated

No

Hardened (Yes/ No)

No

Material

Cellulose

Nominal Ash Content (%)

≤0.011%

Nominal Basis Weight (g/ m²)

80±5g/m²

Pack Count

100

Particle Retention

20-25um

Pore Size (µm)

20.0-25.0

Qualitative/ Quantitative

Quantitative Ashless

Sterility

Nonsterile

Weight

0.56

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• 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.
• 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.