Cytiva Whatman™ Quantitative Filter Paper: Grade 42 Circles

Description

Filters and retains extremely small particles. Whatman™ Quantitative Filter Paper: Grade 42 Circles are suitable for processes that require ashing.

Ashless grades are very pure filters suitable for a wide range of critical analytical filtration procedures. Whatman™ quantitative filter papers are designed for gravimetric analysis and the preparation of samples for instrumental analysis.

• Ashless: 0.007% ash maximum
• Fine (2.5 μm) nominal particle retention rating, eliminates large particles that might otherwise interfere with sensitive instrumentation
• Herzberg filtration speed of 1870 s
• Commonly used as a calcium carbonate filter

Specifications

• Airflow Rate: 96 s/100 mL/in²
• Description: Grade 42 Ashless Filter Paper for Instrumental Analysis, 42.5 mm circle (100 pcs)
• Filter Type: Ashless
• Format: Disc
• Material: Cotton Linters
• Particle Retention: 2.5 μm
• Pore Size: 2.5 μm
• Filtration Speed: 1870 sec.
• Flow Rate: Slow
• For Use With (Application): Designed for gravimetric analysis and the preparation of samples for instrumental analysis.For critical gravimetric analysis with the finest particle retention.
• Grade: Grade 42
• Porosity: Fine
• Quantity: 100 Pk.
• Thickness (Metric): 200 μm
• Type: Quantitative Filter Paper
• Diameter (English): 16.73 in.
• Diameter (Metric): 42.5 mm