Whatman Grade 40 Filter Paper, 4.25 cm - 1440-042 - 100 Each

Whatman Grade 40 Filter Paper, 4.25 cm

The Whatman Grade 40 Filter Paper, 4.25 cm is held for professional buyers who need dependable, repeatable supply. Ashless: 0.007% ash maximum for Grades 40 to 44 and a maximum of 0.01% for the 589 Grades.

Key Features

• These are very pure filters suitable for a wide range of critical analytical filtration procedures.
• Whatman quantitative filters from GE Healthcare are designed for gravimetric analysis and the preparation of samples for instrumental analysis.
• They are available in three formats designed to meet specific needs.
• The classic general-purpose ashless filter paper with medium speed and retention.
• Typical applications include: gravimetric analysis for numerous components in cements, clays, iron, and steel products; as a primary filter for separating solid matter from aqueous extracts in general soil analysis; quantitative determination of sediments in milk; and as a pure analytical grade clean-up filter for solutions prior to atomic absorption (AA) spectrometry.
• Also used as a high-purity filter in the collection of trace elements and radionuclides from the atmosphere.

Specifications