Grade 54 Filter Paper, Fast, 320mm Circle, 100/Pk SKU: 1454-320

Quantitative Ashless Filter Paper - 1454-320

Regulatory laboratories performing routine gravimetric assays need ashless paper with certificates of analysis documenting compliance with method specifications. Tightly controlled manufacturing produces the lot-to-lot consistency that validated gravimetric methods depend on for reproducible results. Together, lot-level verification of retention, thickness, and ash content ensures predictable performance when scaling from method development to routine analysis.

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.
• At 90g/m² nominal basis weight, the paper provides the mass uniformity needed for reproducible gravimetric determinations.
• Designed for gravimetric determinations where the filter paper is ashed or ignited as part of the analytical measurement step.
• Acid-washed cellulose construction produces ash content below 0.01%, meeting the blank value requirements of quantitative gravimetric methods.

When your budget requires balancing performance with cost efficiency, the documented consistency above ensures you're not paying for premium features you don't need. In these cases, fine fiber construction provides the mechanical integrity you need to transfer collected precipitates to the crucible without sample loss. 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

320mm

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

• Gravimetric Determination - Collects and ignites precipitates for accurate mass measurement with negligible filter blank contribution.
• Silica Determination - Captures dehydrated silica for gravimetric analysis in cement, geological, and industrial raw material testing.
• 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.
• Chloride Gravimetry - Retains silver chloride precipitate for mass-based chloride determination in water quality and process control.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.