Whatman Ashless Filter Paper, Grade 589/3, for fine precipitate retention, 110 mm circle 100/pk
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
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.
Grade 589/3: 2 µm
"Blue Ribbon Filter": Ashless standard filter paper for very fine precipitates (class 2d acc. to DIN 53 135). Slow filter paper with highest efficiency for collecting very small particles. Also used for many routine analytical methods in different industries (e.g., determination of the amount of insoluble contaminants in animal and vegetable fats and oils). Also available prepleated as Grade 589/3 ½.