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Density meters
Filter
Circles, quantitative, red ribbon equivalent, grade 1015
The filter papers for quantitative analyses are made of 100 % cotton linters. For maximum purity the papers are acid-washed and cleaned with demineralized water. Ash content is 0.007 %.
Grade 1015, medium to slow filtering, particle retention 5-8 µm, filtration speed 50 s according to DIN 53137, basis weight 84 g/m², thickness 0.16 mm...
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