Whatman 4716E35PK 1440150 Grade 40 Quantitative Filter Paper Ashless Filter Circles, 150 mm, Max Volume 310 ml/m (Pack of 100)
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Whatman 4716E35PK 1440150 Grade 40 Quantitative Filter Paper Ashless Filter Circles, 150 mm, Max Volume 310 ml/m (Pack of 100)
Most widely used general purpose gravimetric filter paper; acid washed, ash content 0.007%
Medium speed and retention (8 µm); rough surface
Used for calcium oxalate, silica in steel and well-digested barium sulfate; as a high-purity filter in the collection of trace elements and radionuclides in the atmosphere
Used as a support for x-ray fluorescence and as a sample carrier for Schoniger combustion