Cytiva Whatman™ Quantitative Filter Paper: Grade 42 Sheets

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

Product Code	Brand	Length (Metric)	Width (Metric)
11370474	Cytiva 1442-6551	25.4 mm	90 mm
11350474	Cytiva 1442-917	46 mm	57 mm

Description

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
• Material: Cotton Linters
• Pore Size: 2.5 μm
• 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.
• Thickness (Metric): 200 μm

• Format: Sheet
• Particle Retention: 2.5 μm
• Filtration Speed: 1870 sec.
• Grade: Grade 42
• Type: Ashless