Whatman Grade 589/2 filters from Cytiva are used in routine quantitative analyses, including analysis of aqueous suspension in paper, flour analysis, and sand content quantification. Grade 589/2 ashless filter paper can be used when medium fine precipitates are being collected and papers must be ashed to support analysis. Grade 589/2 is suitable for a variety of routine quantitative analysis methods, such as determination of the sand content in foodstuffs, flour analysis, and aqueous suspension analysis in the paper industry.

• High purity (﹤0.01% ash)
• Retention of medium fine precipitates, such as grains of sand
• Herzberg filtration speed of 140s (the time taken to filter 100mL water (20°C) through a filter area of 10cm² at a constant pressure of 5cm water column)
• ‘White ribbon filter’