Quantitative Filter Paper, 90 mm dia, Cotton Linters, Grade 589/1

With less than 0.01% ash, Cytiva's Whatman™ Grade 589/1 filter papers can be used for the Blaine test in the cement industry and as an ash content test filter for foodstuffs. Blaine test filter paper: Whatman™ Grade 589/1 filter papers from Cytiva’s Life Sciences business are designed for fast filtration of coarse precipitates in support of tests such as cement fineness measurement in a standard Blaine test or determination of the ash content in foodstuffs.

Diameter	:	90 mm
Grade	:	Grade 589/1
Material	:	High-quality Cotton Linters
Ash Content	:	0.01%
Sterility	:	Non-sterile
Grade Type	:	Ashless
Type	:	Quantitative
Filtration Speed	:	25 sec (Herzberg)
Format	:	Circle
Nominal Basis Weight	:	80 g/m2
Particle Retention in Liquid	:	12 to 25 µm
Properties	:	Fast
Thickness	:	190 µm
Alpha Cellulose Content	:	98%
Ribbon Filter Color	:	Black

For coarse precipitate retentionHerzberg filtration speed of 50 sBlack ribbon filter' for fast filtration of coarse precipitatesHigh purity (Blaine test and ash content test compatibleAlso available prepleated as grade 589/1 1/2Designed for gravimetric analysis and the preparation of samples for instrumental analysis, for the filtration of coarse precipitatesFor many quantitative standard methods, especially for gravimetric applications (e.g., determination of the ash content in foodstuffs) or for the Blaine test in the cement industry