GVS Filter Paper, Disk, 70mm, Glass Fiber, Grade FD, 2.7µm 100/PK FP070DAM27GLFC01

Fast ashless quantitative filter paper designed for gravimetric and environmental analyses. The circular 185 mm ashless Grade 41 disk provides extremely low ash content and fast filtration speed for quantitative analysis of soil, air and preparation of samples for instrumental analysis.

Key Features:

• Format: circular disk, 185 mm diameter
• Grade: 41 (Fast, Ashless)
• Pack size: 100 per pack
• Nominal particle retention: 20 µm
• Nominal ash content: ≤ 0.007%
• Material: high‑quality cotton linters (alpha cellulose ≥98%)
• Nominal thickness/basis weight: ~215 µm / 85 g/m²; typical water flow rate 254 mL/min; Herzberg filtration speed ~54 s

Advantages:

• Extremely low ash content minimizes residue for accurate gravimetric and trace analysis.
• Fast filtration speed reduces processing time for high‑throughput environmental sample preparation.
• 20 µm particle retention and robust cotton‑linter construction handle coarse or gelatinous precipitates encountered in soil and air sample work.
• Consistent manufactured specifications support reproducible sample preparation for instrumental analysis.