Main : Filter Papers : Qualitative Analytical Filters : MN 619 de; very dense, very slow filtration, smooth, thicker than MN 619 eh, for the very finest precipitates such as cold-precipitated barium sulphate 0.20mm thick, 195s filtration speed, weight 100g per meter square
Filter Papers : Qualitative Analytical Filters : MN 619 de; very dense, very slow filtration, smooth, thicker than MN 619 eh, for the very finest precipitates such as cold-precipitated barium sulphate 0.20mm thick, 195s filtration speed, weight 100g per meter square
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