Whatman 1442-090 Quantitative Filter Paper Circles, 2.5 Micron, Grade 42, 90mm Diameter (Pack of 100): Science Lab Qualitative Filter Paper: Industrial & Scientific

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See more product details A world standard for critical gravimetric analysis with the finest particle retention of all Whatman cellulose filter papers. Typical analytical precipitates include barium sulphate, metastannic acid and finely precipitated calcium carbonate. Retention: 2.5µm. Diameter: 9.0cm. 100/Pack. Whatman #: 1442-090.

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