Filter Paper 150mm Blue Dot Grade 391 Pk 100

Sartorius Grade 391 Blue Dot Quantitative Filter Paper Discs are high-purity, fine-pore filter papers designed for quantitative and gravimetric analysis, as well as pressure and vacuum filtration.

Manufactured from 100% cotton linters with an alpha-cellulose content greater than 98%, the filter papers are acid-washed to provide high purity and an extremely low ash content. Their fine, dense structure provides a 2–3 µm particle retention rate, making them particularly suitable for the filtration of very fine crystalline precipitates.

The papers are also wet-strengthened for reliable handling during laboratory filtration procedures.

Key Features:

• Grade 391 Blue Dot quantitative filter paper
• 150 mm diameter discs
• Particle retention: 2–3 µm
• Very slow filtration
• Filtration time: 180 seconds
• Basis weight: 84 g/m²
• Made from 100% cotton linters
• Alpha-cellulose content: >98%
• Ash content: ≤0.01%
• Wet-strengthened
• Suitable for quantitative and gravimetric analysis
• Suitable for pressure and vacuum filtration
• Pack Size: 100 discs
• Supplier: Sartorius
• Product Code: FT-3-104-150