Whatman Quantitative Ashless Filter Paper, Grade 41, 125mm (100-pk)

Whatman Grade 41 quantitative ashless filter paper delivers exceptional performance for gravimetric analysis and analytical procedures requiring virtually ash-free residue. This fast-filtering paper is ideally suited for geochemical and soil analysis, air pollution monitoring, and quantitative determination of calcium and iron compounds in pharmaceutical and industrial laboratories.

• Grade: 41 – Ashless quantitative filter paper with ash content below 0.01%
• Particle Retention: 20µm – Fast filtration speed for coarse precipitates and gelatinous samples
• Diameter: 125mm – Standard size compatible with common filtration apparatus
• Quantity: 100 sheets per pack for consistent laboratory supply
• Composition: High-purity cellulose with acid-washed treatment for low metal content
• SKU: 1441-125