Grade 50 Filter Paper, Thin, 90mm Circle, 100/Pk SKU: 1450-090

Quantitative Ashless Filter Paper - 1450-090

Gravimetric analysis demands filter paper that contributes virtually no residue after ignition, ensuring mass measurements reflect the sample alone. Controlled fiber density balances rapid filtration rates with complete precipitate capture for efficient quantitative determinations. Working in concert, from fiber selection through final inspection, the manufacturing process ensures every sheet meets the performance specifications of its grade.

Key Filter Paper Characteristics

• Ash content of <0.015% provides the documented blank value specification that quantitative analytical methods require.
• Certificate of analysis documents actual ash content per production lot, providing traceability for regulated analytical methods.
• Smooth surface finish facilitates complete precipitate recovery and clean separation from the paper during transfer operations.
• Controlled fiber density balances rapid filtration with complete precipitate capture for efficient quantitative determinations.
• Designed for gravimetric determinations where the filter paper is ashed or ignited as part of the analytical measurement step.

Whether your method requires simple clarification or precise gravimetric determination, the documented specifications above define what this paper delivers. Here, ashless purity positions this paper as your standard medium for any method where the filter becomes part of the final measurement. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Diameter

90mm

Flow Speed

Slow

Folded/ Fluted/ Pleated

No

Grade

50

Hardened (Yes/ No)

Yes

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.015%

Nominal Basis Weight (g/ m²)

115g/m²

Pack Count

100

Particle Retention

2.7um

Pore Size (µm)

2.7

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.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.
• Gravimetric Determination - Collects and ignites precipitates for accurate mass measurement with negligible filter blank contribution.
• Lead Quantification - Captures lead sulfate precipitate for gravimetric determination in environmental and industrial samples.
• Silica Determination - Captures dehydrated silica for gravimetric analysis in cement, geological, and industrial raw material testing.
• Calcium Oxalate Analysis - Captures calcium precipitate for ignition to calcium oxide, supporting clinical and water hardness testing.