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L – Suitable for gravity or low suction filtration. Care must be taken to prevent rupture of paper
M – Will withstand all normal use on Buchner Funnels or others devices under suction or moderate pressure
H – High wet strength and high chemical resistance
Grade No
Flow rate
Retention microns
Wet Strength
Thickness, mm
Ash %
5
Will retain fine precipitates, grained surface
Slow
2.5
L
0.2
0.06
Available Sizes:
Circles: 25 mm to 320 mm (available prepleated)
Properties
Particle retention1: 2.5µm
Nominal thickness: 200 µm
Nominal basis weight: 100 g/m2
Nominal ash content2: 0.06%
Applications
Grade 5 provides the maximum degree of fine particle retention in the qualitative paper range, with an equivalent slow flow rate. Specific applications include:
Retaining fine precipitates in chemical analysis
Clarifying cloudy suspensions in soil and water analysis
