Grade 52 Filter Paper, General, 240mm Circle, 100/Pk SKU: 1452-240

Quantitative Ashless Filter Paper - 1452-240

Multi-step analytical procedures ending in gravimetric determination need paper that survives reagent contact and delivers minimal residue on ignition. Each production lot is tested for ash content and documented with a certificate to support analytical traceability requirements. Consequently, from fiber selection through final inspection, the manufacturing process ensures every sheet meets the performance specifications of its grade.

Key Filter Paper Characteristics

• Acid washing process removes metallic contaminants that could interfere with trace element determinations after ignition.
• Certificate of analysis documents actual ash content per production lot, providing traceability for regulated analytical methods.
• Manufactured under controlled acid washing conditions, each sheet delivers consistent ash levels across production lots for method reproducibility.
• Ashless filter paper provides the documented low residue needed for ignition-based analytical procedures where filter mass affects results.
• Enhanced wet strength allows vacuum filtration at higher differential pressures without risking paper rupture mid-run.

When your quality system requires documented specifications for every consumable, the grade data above provides the traceability your auditors expect. With these demands in mind, 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

240mm

Flow Speed

Medium

Folded/ Fluted/ Pleated

No

Grade

52

Hardened (Yes/ No)

Yes

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.015%

Nominal Basis Weight (g/ m²)

96g/m²

Pack Count

100

Particle Retention

7um

Pore Size (µm)

7

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.
• Nickel Determination - Retains nickel dimethylglyoxime precipitate for ignition-based quantification in alloy and plating bath testing.
• Silica Determination - Captures dehydrated silica for gravimetric analysis in cement, geological, and industrial raw material testing.
• Total Ash Testing - Provides the ultra-low blank needed for accurate ash determination in food, pharmaceutical, and material samples.
• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• Iron Determination - Collects iron hydroxide precipitate for gravimetric determination in ore assay and environmental analysis.