GVS Filter, Disk, NC, 0.1µm, White, 47mm 100/PK 1214533

Quantitative ashless filter discs for analytical laboratory filtration and gravimetric analysis. These 70 mm, ashless, slow-retention (Grade 44) circular papers are designed to retain fine particles (2–4 µm) while providing high wet strength and reproducible filtration times, making them suitable for accurate ash-free dry mass determinations and other critical analytical procedures.

Key Features:

• Diameter: 70 mm
• Box quantity: 100 discs
• Grade: Quantitative, Grade 44 (Slow)
• Retention range: 2–4 µm
• Filtration time (distilled water): 292 seconds
• Thickness: 160 µm
• Weight (basis): 80 g/m²; Wet bursting strength: 52 kPa

Advantages:

• Very low ash content suitable for accurate ash-free dry weight measurements
• Slow, fine-particle retention ideal for trapping small precipitates and particulates
• High wet bursting strength improves handling and recovery of precipitates during filtration
• Consistent filtration time and defined retention range support reproducible analytical results