Ahlstrom 615 Standard Qualitative Filter Papers have a rough surface and are used for filtering aluminum, ferric, and magnesium hydroxides. It is also found in general construction filtration work and in the filtration of insoluble iron and ore.

Standard qualitative filter papers are suitable for quadrant folded or gravity flow applications. These grades contain a high level of alpha-cellulose that provides high purity but will weaken when wet. The inherent strength of standard (untreated) grades does not pose a problem when they are used in routine quadrant folded applications. Not recommended for use in vacuum work or when went handling is required.

Key Features

• Retention: 25.0µm
• Filtration Speed: 29 sec/100mls (Herzberg), 235 mls/min (Rapidity)
• High Loading Capacity