Grade 589/2 Medium Fine Precipitate Filter

Whatman Grade 589/2 filters from GE are used in routine quantitative analyses, including analysis of aqueous suspension in paper, flour analysis, and sand content quantification.

• High purity (< 0.01% ash)
• Retention of medium fine precipitates, such as grains of sand
• Herzberg filtration speed of 140 s*
• ‘White ribbon filter’

*The time taken to filter 100 ml water (20°C) through a filter area of 10 cm² at a constant pressure of 5 cm water column

Whatman quantitative filters from GE Healthcare’s Life Sciences business are designed for gravimetric analysis. Grade 589/2 Whatman ashless filter paper can also be purchased as pre-pleated 589/2 ½ sheets.

General filtration with quantitative papers

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.

Grade 589/2: 4-12 µm

Specifications:

• Format: Circles
• Type: Ashless
• Typical Thickness: 180 µm
• Basis Weight: 85 g/m²
• Filtration Time to Herzberg: 140s
• Filtration Speed (Herzberg): 70s
• Ash Content: 0.01%
• Material: High-quality cotton linters
• Alpha Cellulose Content Min.: 98%
• Ribbon Filter Color: White

Ordering Information: