Whatman™ Grade 42 Quantitative Filter Paper

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

Overview
Brand: Whatman™

Manufacturer Part Number: 1442-042

X100 FILTER PAPER GR. 42 42.5MM

UNSPSC: 41104929

Code: 69

Additional Details:
Additional Details: Weight: 0.79380kg



Product Code. 11352955

Quantity Price
1 £ 13.35 / Pack of 100
5 £ 10.68 / Pack of 100
Estimated Shipment
19-12-2016
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Description and Specification

Specification

Quantity 100Pack
Grade 42
Material High-quality Cotton Linters
Pore Size (Metric) 2.5μm
Format Circle
Thickness (Metric) 200μm
Porosity Fine
Diameter (Metric) 425mm
For Use With (Application) Highly retentive, for very fine precipitates. Normal loading; limited wet strength. Laboratory standard for critical gravimetric analysis
Flow Rate Slow

Quantitative papers with fine retention
  • 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