Grade 391 Hardened Low-Ash Filter Paper

$15.68
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SKU:
3910-
Circles per Pack:
100
Grade 391 Hardened Low-Ash Filter Paper
Low ash grades have intermediate ash content between qualitative grades and ashless grades. Grade 391 is slowly filtering and used for fine-grained precipitates such as barium sulfate, metastannic acid, and cuprous oxide. Retention of 2-3 microns.