Filter Paper – Grade 1, 150 mm Diameter (Pack of 100)

Grade 1 laboratory filter paper designed for routine filtration with medium retention and reliable flow rate.

This standard-grade filter paper is widely used in school and teaching laboratories for clarifying liquids and carrying out qualitative analytical separations. Suitable for everyday chemistry work, it supports consistent filtration of common precipitates such as lead sulfate, calcium oxalate, and calcium carbonate, making it a dependable choice for student practicals and demonstrations.

Key Features

• Grade 1 filter paper suitable for general-purpose laboratory filtration
• Medium particle retention with balanced filtration speed
• Commonly used for qualitative analysis and routine separations
• Consistent performance for clarifying liquids in teaching labs
• Supplied as circular sheets ready for standard filter funnels

Specifications

• Grade: 1 (standard)
• Particle retention (liquid): 9 µm
• Initial filtration speed: 155 s / 100 mL
• Thickness: 0.20 mm
• Basis weight: 87 g/m²
• Dry bursting strength: 89 kPa
• Diameter: 150 mm
• Shape: Circular
• Pack size: 100 sheets