Whatman Grade 589/1 Black Ribbon Ashless Quantitative Filter Paper. ALL SIZES
Whatman Grade 589/1 has less than 0.01% ash. Grade 589/1 Black Ribbon filter papers can be used for the Blaine test in the cement industry and as an ash content test filter for foodstuffs. Designed for fast filtration of coarse precipitates. Herzberg filtration speed of 50s. 100/box.
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