Grade 50 Filter Paper, Thin, White Smear Tab Sheet, 100/Pk SKU: 1450-993

Quantitative Ashless Filter Paper - 1450-993

Analytical laboratories performing routine gravimetric work need filter paper with consistent, documented ash values across every production lot. Certificate of analysis provides lot-specific ash content values for incorporation into method blank calculations and quality records. Each sheet reflects production standards where fiber density, thickness, and retention characteristics are verified before lot release.

Key Filter Paper Characteristics

• Certificate of analysis documents actual ash content per production lot, providing traceability for regulated analytical methods.
• Controlled fiber density balances rapid filtration with complete precipitate capture for efficient quantitative determinations.
• Acid washing process removes metallic contaminants that could interfere with trace element determinations after ignition.
• Designed for gravimetric determinations where the filter paper is ashed or ignited as part of the analytical measurement step.
• Controlled ash level at <0.015% ensures inorganic residue after ignition remains within the acceptable range for gravimetric procedures.

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.

Color

White

Diameter

46mm

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

• 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.
• Phosphate Gravimetry - Collects magnesium ammonium phosphate precipitate for ignition to pyrophosphate in soil and fertilizer analysis.
• Nickel Determination - Retains nickel dimethylglyoxime precipitate for ignition-based quantification in alloy and plating bath testing.
• Aluminum Analysis - Collects aluminum hydroxide precipitate for ignition and weighing in metallurgical and environmental methods.
• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.