Quantitative Ashless Filter Paper, Medium, 8 um, 180mm, 100/Pk SKU: CF15017

Quantitative Ashless Filter Paper - CF15017

Analytical laboratories performing routine gravimetric work need filter paper with consistent, documented ash values across every production lot. Sulfate determination by precipitation requires filter paper whose ash content remains below the method's blank specification after ignition. On this basis, consistent physical properties across the full sheet area support uniform filtration results in both gravity and vacuum applications.

Key Filter Paper Characteristics

• Pure cellulose fiber matrix combines low inorganic residue with the mechanical integrity needed for careful precipitate transfer.
• Ashless filter paper provides the documented low residue needed for ignition-based analytical procedures where filter mass affects results.
• Acid-washed cellulose construction produces ash content below 0.01%, meeting the blank value requirements of quantitative gravimetric methods.
• Manufactured under controlled acid washing conditions, each sheet delivers consistent ash levels across production lots for method reproducibility.
• Certificate of analysis documents actual ash content per production lot, providing traceability for regulated analytical methods.

Whether your method requires simple clarification or precise gravimetric determination, the documented specifications above define what this paper delivers. In this context, certificate-backed ash specifications provide the documented evidence your quality auditors require for gravimetric method validation. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Capacity

1mL

Diameter

180mm

Flow Speed

Medium

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

8um

Pore Size (µm)

8

Qualitative/ Quantitative

Quantitative Ashless

Sterility

Nonsterile

Weight

0.56

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Silica Determination - Captures dehydrated silica for gravimetric analysis in cement, geological, and industrial raw material testing.
• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• Calcium Oxalate Analysis - Captures calcium precipitate for ignition to calcium oxide, supporting clinical and water hardness testing.
• 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.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.