This low ash grade contains more than 95% super refined alpha-cellulose and linter fibers.

This grade covers a wide range of laboratory applications and is used for clarifying liquids and for rapid filtration of coarser precipitates such as lead sulfate, lead chromate, calcium oxalate, calcium carbonate, aluminum phosphate, barium carbonate, and beryllium hydroxide. Grade 601 can be found in soil analysis, seed testing, and in air pollution to collect dust-laden air and is also commonly used in the food industry to separate foodstuffs from associated liquid or extracting liquid. Normal filter paper is a semi-permeable barrier that we use to separate components in a liquid flow or an air flow.

Characteristics: White, smooth surface, cotton

Grade 601 is a smooth white filter particularly suitable for testing seed and roots appearance under fluorescent light.

Ahlstrom-Munksjo Cross Reference

Data Sheet

Physical Property                     Metric Units

• Basis Weight                       87.8 gsm
• Basis Weight                       2.59 oz/yd²
• Thickness                           0.1905 mm
• Rapidity                             55.0 mls/min
• Tensile Strength MDT Dry    2189 N/m
• Retention                           2.5 micron
• Wet Burst                          33.0 cm
• Water Pickup %                 283%
• Klemm                              20.6375 mm/min

When folded into a cone (typically in quarters), it should fit inside the funnel with about 5–10 mm extending above the rim for easy handling.

What is filter paper used for?

Filter paper is used to separate solids from liquids or gases, acting as a semi-permeable barrier that allows certain substances to pass through while retaining others. It's commonly used in laboratories for various applications, including filtration, sample preparation, and analysis.