Circles and sheets. Qualitative. Slightly thicker and more retentive than number 1.

Flowrate: Retention: Wet strength: Thickness: Ash:

Medium Medium Low 0.19mm 0.06%

Circles. Qualitative. General purpose schools grade, creped.

Flowrate: Retention: Wet strength: Thickness:

Medium Medium High 0.205mm

Ideal for weighing and transporting all types of sample. Especially for determination of nitrogen according to Kjeldahl (e.g. determination of total protein content in foodstuff). Made of nitrogen-free parchment paper. Can be dropped into the Kjeldahl flask and be dissolved together with the sample.

Circles. Qualitative. Fast flowrate. Excellent retention of coarse and gelatinous precipitants. Smooth. Supplied in packs of circles as outlined below.

Flowrate: Retention: Wet strength: Thickness: Ash:

Fast High Low 0.21mm 0.06%

Medium fast, 4 - 7 µm.

• time saving, because folded filters have a larger surface area
• filter faster than comparable circular filters
• for medium to fine precipitates and general laboratory work
• Weight: 68 g/m²
• Thickness: 0.15 mm

Alternative Filter paper, qualitative, type MN 615, circles Alternative Filter paper 595, qualitative, folded filters

Syringe filters are suitable for rapid sample filtration and are used in a variety of applications, such as capillary electrophoresis, protein filtration, and UV spectroscopy sample preparation. With female Luer lock inlet.

For the ready-to-use filter units, only virgin raw material is used. This ensures that there is no interaction with the sample to be filtered, provided that the units are used properly. The filter units are intended for laboratory use only.

Note: If syringes with a volume <10 ml are used, a pressure could be created which exceeds the max. operating pressure (700 kPa/7 bar) of the filter unit.
Hydrophilic membrane made of cellulose acetate (CA). Very low protein binding capacity.

• Housing made of PC
• Outlet male Luer cone
• Autoclavable at 121 °C

Circles. Quantitative. Ashless.

Flow rate: Retention: Wet strength: Thickness: Ash:

Medium Medium Low 0.21mm 0.007%

Ashless. For filtration of coarse and gelatinous precipitates.

Flow rate: Retention: Wet strength: Thickness: Ash:

Fast Medium Low 0.22mm 0.007%

Medium fast 4 to 7µm

• thin filter paper
• for medium to fine precipitates and general laboratory work
• Weight: 68g/m²
• Thickness: 0.150mm

Alternative Filter paper, qualitative, type MN 615, circles Alternative Filter Paper 595, qualitative, round filters

Circles. Quantitative. Ashless. For filtration of fine precipitates.

Flow rate: Retention: Wet strength: Thickness: Ash:

Slow High Low 0.20mm 0.007%

Medium fast, 4 - 7µm

• time saving, because folded filters have a larger surface area
• for medium to fine precipitates
• Weight: 85 g/m²

Thickness: 0.18 mm

Alternative Filter paper, qualitative, type MN 615, circles Alternative Filter paper 597, qualitative, folded filters

Fast 12 to 25µm
Black ribbon

• for coarse, high volume precipitates
• for determinations according to the German Standard Methods for the examination of water, waste water and sludge.
• most frequently used quantitative filter
• Weight: 80g/m²
• Thickness: 0.19mm

Alternative Filter paper, qualitative, type MN 615, circles Alternative Filter paper, quantitative, round filters, 589/3

Circles and sheets. Qualitative. The most widely used grade of filter paper.

Flowrate: Retention: Wet strength: Thickness:

Medium Medium Low 0.18mm

Medium fast, 4 to 12 µm. White ribbon.

• for the analysis of foodstuffs
• for carbonates of alkaline earth metals, (NH₄)₃[P(Mo₃O₁₀)₄] x aq., Mg(NH₄)PO₄, CaC₂O₄ (hot precipitates)
• Weight: 85g/m²
• Thickness: 0.18mm

Alternative Filter paper, qualitative, type MN 615, circles Alternative Filter paper, quantitative, round filters, 589/3

Glass microfibre filters have a fast filtration and a high loading capacity and particle retention rate. Manufactured without chemical binder from high grade borosilicate glass. (Exception: GF6, GF9). They are suitable for gravity or low suction filtration. Filtration speeds generally very much higher than conventional cellulose papers. Efficient retention of micron size particles. Must be used flat. Ideal for use in flat perforated plate Buchner type funnels (not sintered glass models). Can be used up to 500 °C.
Extremely efficient filter made to retain fine particles and micro organisms. Particle retention to 1.2 µm.

Glass microfibre filters have a fast filtration and a high loading capacity and particle retention rate. Manufactured without chemical binder from high grade borosilicate glass. (Exception: GF6, GF9). They are suitable for gravity or low suction filtration. Filtration speeds generally very much higher than conventional cellulose papers. Efficient retention of micron size particles. Must be used flat. Ideal for use in flat perforated plate Buchner type funnels (not sintered glass models). Can be used up to 500 °C.
This ultra-fine filter has a 98 % retention efficiency for particles as small as 0.7 µm in liquids. Particle retention to 0.7 µm.

Slow < 2 µm. Blue ribbon.

• for very fine precipitates and small particles
• for soil analysis
• for BaSO₄ (hot precipitate), PbSo₄, Cu₂O, ZnS, NiS
• Weight: 84 g/m²
• Thickness: 0.16 mm

Alternative Filter paper, qualitative, type MN 615, circles Alternative Filter paper, quantitative, round filters, 589/3

Glass microfibre filters have a fast filtration and a high loading capacity and particle retention rate. Manufactured without chemical binder from high grade borosilicate glass. (Exception: GF6, GF9). They are suitable for gravity or low suction filtration. Filtration speeds generally very much higher than conventional cellulose papers. Efficient retention of micron size particles. Must be used flat. Ideal for use in flat perforated plate Buchner type funnels (not sintered glass models). Can be used up to 500 °C.
Thick filter made from less fibres and retaining around 3µm particles with a very high loading capacity. Extremely high speed. Particle retention to 2.7µm.

Qualitative. Folded (pre-pleated) version of Number 2.

Flowrate: Retention: Wet strength: Thickness: Ash:

Medium Medium Low 0.19mm 0.06%

Applications:

• Excellent for gravimetrical analysis
• Especially for aqueous solutions
• Ideally suitable for contamination test

Properties:

• Economical
• Constant weight
• Hydrophilic
• Not sterile
• Can be used up to 125 °C
• Autoclavable up to 121 °C

Very slow, <2 µm

• thick filter paper
• for fine precipitates
• Weight: 85g/m²
• Thickness: 0.15mm

Alternative Filter paper, qualitative, type MN 615, circles Alternative Filter paper 602h / 602eh, qualitative, folded filters

Manufactured in pure cellulose according to DIN 12449.

Alternative Filter paper, qualitative, type MN 615, circles Alternative Extraction thimbles, Cellulose Alternative Extraction Thimbles, cellulose

Versatile use - ready-to-use filter units with a hydrophilic,
low protein-binding membrane made of regenerated cellulose.
First class chemical resistance against the usual aqueous
and organic HPLC solvents

• Spartan^®13 and 30 are tested and certified for UV absorbance substances at wavelengths of 210nm and 254nm with water, methanol and acetonitrile;
• Spartan^® 13 has an extremely low hold up volume; <10µl, for optimal filtration

Applications:
Ideal for HPLC sample preparation to achieve reproducible results. Carefully controlled manufacture guarantees lowest traces of UV- absorbing, extractable components.

Alternative Syringe filters, disposable, ReZist®PTFE

Glass microfibre filters have a fast filtration and a high loading capacity and particle retention rate. Manufactured without chemical binder from high grade borosilicate glass. (Exception: GF6, GF9). They are suitable for gravity or low suction filtration. Filtration speeds generally very much higher than conventional cellulose papers. Efficient retention of micron size particles. Must be used flat. Ideal for use in flat perforated plate Buchner type funnels (not sintered glass models). Can be used up to 500 °C.
To Herzberg.

Retention rate:	99.97 %
Filtration time according to Gurley:	40 s

Alternative Glass fibre papers Type MN GF 6 Alternative Fibre Filters with inorganic binder