Grade 54 Filter Paper, Fast, 185mm Circle, 100/Pk SKU: 1454-185

Quantitative Ashless Filter Paper - 1454-185

Trace-level determinations by ignition depend on filter paper with ash content low enough to fall within method-acceptable blank ranges. Smooth fiber surface facilitates clean precipitate release during transfer operations from funnel to crucible. Taken together, documented grade specifications provide laboratories with the technical data needed to select appropriate papers without preliminary testing.

Key Filter Paper Characteristics

• Smooth surface finish facilitates complete precipitate recovery and clean separation from the paper during transfer operations.
• Surface treatment creates cross-linked cellulose structure that resists fiber degradation during extended reagent contact.
• Acid washing process removes metallic contaminants that could interfere with trace element determinations after ignition.
• Acid-washed cellulose construction produces ash content below 0.01%, meeting the blank value requirements of quantitative gravimetric methods.
• Controlled ash level of <0.015% meets the blank value requirements of quantitative methods where filter contribution must be documented.

Maintaining accreditation requires documented traceability at every step, and the grade specifications above support your audit readiness. With this in mind, ashless certification supports the regulatory compliance documentation your environmental and pharmaceutical methods demand. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

Diameter

185mm

Flow Speed

Fast

Folded/ Fluted/ Pleated

No

Grade

54

Hardened (Yes/ No)

Yes

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.015%

Nominal Basis Weight (g/ m²)

90g/m²

Pack Count

100

Particle Retention

22um

Pore Size (µm)

22

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Phosphate Gravimetry - Collects magnesium ammonium phosphate precipitate for ignition to pyrophosphate in soil and fertilizer analysis.
• Total Ash Testing - Provides the ultra-low blank needed for accurate ash determination in food, pharmaceutical, and material samples.
• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.
• Silica Determination - Captures dehydrated silica for gravimetric analysis in cement, geological, and industrial raw material testing.
• Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.