Quantitative filter papers, ashless grades, grade 589/3, Whatman™

Whatman Grade 589/3 ashless filter paper from Cytiva 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*
• Also available prepleated as Grade 589/3 ½

*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.

Grade 589/3 filter paper from Cytiva's 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. Ash free dry mass.