Sartorius Grade 292 filter discs are cotton-linter papers for qualitative laboratory filtration where low ash content is important. The medium-dense, medium-fast grade supports clarification, analytical sample preparation and particle analysis, including the filtration of fine crystalline precipitates. Their low nitrogen and nitrate content and absence of additives make them suitable for analytical workflows in which the filter paper should introduce minimal additional material.

Key Features

Low ash content of ≤ 0.06%.
Made from cotton linters with low nitrogen and nitrate content.
Medium-dense, medium-fast filtering grade.
No additives, including wet-strengthening agents.
Stated retention rate of 5–8 µm for fine crystalline precipitates.

Applications

Qualitative analyses requiring low ash content.
Determination of nitrogen content in soil samples.
Malt filtration according to EBC standards.
Clarification, analytical sample preparation and particle analysis.

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