Grade 589/3 Filter for Fine Precipitate Retention

Whatman Grade 589/3 ashless filter paper from GE is particularly useful in capturing very fine particulate samples such as insoluble molecules in fats or oils or supporting ash free dry mass.

• High purity (< 0.01% ash) for ash free dry mass methods
• ‘Blue ribbon filter’
• Very fine precipitate retention (class 2d acc. to DIN 53 135)
• Herzberg filtration speed of 750 s*

*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

Ash free dry mass

Grade 589/3 filter paper from GE Healthcare’s Life Sciences business supports accurate measurement of ash free dry mass. The blue ribbon filter is an established component in a variety of quantitative analysis methods, such as quantification of insoluble contaminants in animal and vegetable fats and oils.

Grade 589/3: 2 µm

Specifications:

• Format: Circles
• Type: Ashless
• Typical Thickness: 160 µm
• Basis Weight: 84 g/m²
• Filtration Time to Herzberg: 1500s
• Filtration Speed (Herzberg): 375s
• Ash Content: 0.01%
• Material: High-quality cotton linters
• Alpha Cellulose Content Min.: 98%
• Ribbon Filter Color: Blue

Ordering Information: