Whatman 10300009 Ashless Quantitative Filter Paper, 90mm Diameter, 12-25 Micron, Grade 589/1 (Pack of 100)

Black Ribbon Filter' - the established standard in quantitative analysis for the filtration of coarse precipitates (class 2a acc. to DIN 53 135). Ashless filter paper with very high flow rate. Used for many quantitative standard methods, esp. for gravimetric applications (e.g. determination of the ash content in foodstuffs to § 35 LMBG*), or for the Blaine test in the cement industry. Filtration speed: 25 herzberg. Ash content: 0.01%. Typical thickness: 190µm. Basis weight: 80g/m². Retention: 12-25µm. Diameter: 90mm. 100/Pack. Whatman #: 10300009.

• Diameter: 90mm; retention: 12-25µm
• Filtration speed: 25 herzberg; ash content: 0.01%; typical thickness: 190µm; basis weight: 80g/m²
• Ashless standard filter paper for the filtration of coarse precipitates (class 2a acc. to DIN 53 135)
• Very high flow rate
• Used for many quantitative standard methods, esp. for gravimetric applications (e.g. determination of the ash content in foodstuffs to § 35 LMBG*), or for the Blaine test in the cement industry