Grade 540 Ashless General Lab Filter Paper, 150mm Circles (100 pcs) SKU: 1540-150

Quantitative Ashless Filter Paper - 1540-150

Classical analytical methods requiring filter ignition with collected precipitate demand documented ash values verifiable through every production lot. Tightly controlled manufacturing produces the lot-to-lot consistency that validated gravimetric methods depend on for reproducible results. As a result, standardized manufacturing protocols produce papers with retention and flow characteristics that remain constant from the first batch to the last.

Key Filter Paper Characteristics

• Designed for gravimetric determinations where the filter paper is ashed or ignited as part of the analytical measurement step.
• Nominal basis weight of 88g/m² reflects the fiber density that determines flow rate, retention, and mechanical handling characteristics.
• Pure cellulose fiber matrix combines low inorganic residue with the mechanical integrity needed for careful precipitate transfer.
• 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.

Your sample preparation workflow benefits from a filter paper whose performance is defined, documented, and consistent from one purchase to the next. Here, uniform fiber density across the sheet area ensures your precipitate capture remains consistent from center to edge. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

Diameter

150mm

Flow Speed

Medium

Folded/ Fluted/ Pleated

No

Grade

540

Hardened (Yes/ No)

Yes

Material

Cellulose Fiber

Nominal Ash Content (%)

<0.006%

Nominal Basis Weight (g/ m²)

88g/m²

Particle Retention

8um

Pore Size (µm)

8

Qualitative/ Quantitative

Quantitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Iron Determination - Collects iron hydroxide precipitate for gravimetric determination in ore assay and environmental analysis.
• Sulfate Gravimetry - Retains barium sulfate precipitate for ignition-based sulfate quantification in water and industrial samples.
• Nickel Determination - Retains nickel dimethylglyoxime precipitate for ignition-based quantification in alloy and plating bath testing.
• Zinc Analysis - Collects zinc ammonium phosphate precipitate for ignition-based quantification in metallurgical and water testing.
• Lead Quantification - Captures lead sulfate precipitate for gravimetric determination in environmental and industrial samples.
• Phosphate Gravimetry - Collects magnesium ammonium phosphate precipitate for ignition to pyrophosphate in soil and fertilizer analysis.