The classic general-purpose ashless filter paper with medium speed and retention.
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.
Grade 40: 8 µm
Typical applications for the Grade 40 filter 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.
CanLab No. | Description | Qty/Uom |
52E6174 | Grade 40 Filter Paper, Ashless (Ash 0.007%), Circle, 110mm | 100/PK |
03E6174 | Grade 40 Filter Paper, Ashless (Ash 0.007%), Circle, 125mm | 100/PK |
53E6174 | Grade 40 Filter Paper, Ashless (Ash 0.007%), Circle, 150mm | 100/PK |
04E6174 | Grade 40 Filter Paper, Ashless (Ash 0.007%), Circle, 185mm | 100/PK |
79R8980 | Grade 40 Filter Paper, Ashless (Ash 0.007%), Circle, 240mm | 100/PK |
51E6174 | Grade 40 Filter Paper, Ashless (Ash 0.007%), Circle, 70mm | 100/PK |
02E6174 | Grade 40 Filter Paper, Ashless (Ash 0.007%), Circle, 90mm | 100/PK |