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.
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
Ash free dry mass
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.