Filter paper, qualitative

Housing MBS. SFCA / CA (Surfactant-free Cellulose Acetate) membrane. For sterile, particle free, ultrapure filtration of small volumes of liquid up to approx. 100 ml. Colour coded and printed for easy membrane and pore size identification. With hydrophilic cellulose acetate membrane for minimum adsorption. Ready-to-use. With female luer-lock inlet, male luer slip outlet.

Highly pure filter paper (approx. 0.08% ash) recommended for precise identification of materials and for sample preparation prior to sensitive detection methods. These filter papers are perfectly qualified for food control according to LFBG paragraph 64 para. 1 and 2, beverage analysis and environmental monitoring.

• Made of the same raw materials (super-refined cotton linters and cellulose) like quantitative filter papers
• High stability and durability due to alpha-Cellulose content above 95%

Dimensions: 580 x 580 mm, creped.
Other dimensions are available on request.

Slow < 2µm

• thick filter paper
• for fine precipitates
• Weight: 84g/m²
• Thickness: 0.16mm

Medium fast, 4 - 7µm

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

Very slow, <2 µm

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

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

Medium-fast.

• Embossed
• For determination of sugar content, colour, essential oils and emulsions
• Weight: 75 g/m²
• Thickness: 0.25 mm

Suitable for analytical and gravimetric analyses, as well as a pre-filter.

• Hydrophilic
• Liquid Filtration
• Non-sterile

Circles and sheets. Qualitative. Very thick. Double the thickness of number 1.

Soft, 9 sec. filtration time, smooth.

Medium to slow 2 to 5µm

• time saving, because folded filters have a larger surface area than comparable circular filters
• for medium to fine precipitates and general laboratory work
• Weight: 85g/m²
• Thickness: 0.17mm

Fast, 12 to 25µm

• time saving, because folded filters have a larger surface area
• filter faster than comparable circular filters
• for coarse precipitates (e.g. hydroxide and sulphide)
• Weight: 80g/m²
• Thickness: 0.19mm

Medium fast filtration, suitable for many applications such as for sulphides, lead chromate and calcium oxalate.

Medium fast, 4 - 7µm

• thicker and faster than 595
• for medium to fine precipitates
• Weight 85 g/m²
• Thickness 0.180 mm

Circles. Qualitative. Slow flowrate. Retains fine precipitates, grained surface. Supplied in packs of circles as outlined below.

• Acid-treated for high wet-strength
• Extremely low ash content (0.006 % ash maximum)
• Nominal particle retention of 8 µm
• Medium flow rate (Herzberg filtration speed 200 s)
• High chemical resistance to strong acid and alkali suspensions

The primary field of application is the partition chromatography of polar substances such as amino acids, carboxylic acids or carbohydrates. The TLC-plates are available as glass plates, POLYGRAM^® polyester sheets and ALUGRAM^® aluminium sheets.

• Fiber length (95 %) 2-20 µm
• Average degree of polymerization 400-500
• Specific surface according to Blaine 15000 cm²/g
• ≤ 20 ppm Fe, 6 ppm Cu, 7 ppm P
• Dichloromethane extract ≤ 0.25 %
• Residue on ignition at 850 °C ≤ 1500 ppm
• Available with or without fluorescent indicator (UV 254)

These gamma-ray sterilized bags have a high mechanical stability and ensure safety for the samples. The filters inserted in the bags filter the liquid during sample preparation (washing process) and retain sample particles.

BagLight^®: Bag without filter, for all microbiological laboratory applications.
BagLight^® Multilayer: Like BagLight^® with strong multilayer film.
BagLight^® Multilayer U: Like BagLight^® with strong multilayer film and U-bottom.

BagPage^® and BagPage^®+: Homogenizer bag with a micro-perforated filter that extends over the entire width of the sample bag (full-size filter).
BagPage^® R: Like BagPage^® with non-woven filter.
BagPage^® F: Like BagPage^® for flow cytometry.
BagPage^® XR: Like BagPage^® extra resistant.

BagFilter^® P: Bag with non-woven filter (side filter). Removal of the filtered solvent with BagPipet^®. With pre-cut for pipetting.
BagFilter^® Roll: Bag with non-woven filter (side filter). With waterproof quick-closure by resealable sticker.
BagFilter^® Pipett: Bag with non-woven filter (side filter). With resealable pipette access for micropipettes.
BagFilter^® Pipet & Roll: Bag with non-woven filter (side filter). Combines the resealable Pipette access with waterproof quick-closure.

LabSorb is two-layered: The top layer is a quality filter paper to enable rapid absorption of spilt liquids. The bottom layer is polyethylene-coated and protects the surface underneath from contamination and damage.

For retaining specimen visibility (50 sheets).

For filtration of the mash when determining the extract in malt and wort according to the analytical regulations of the EBC. Also used for removal of carbon dioxide from beer.

Smooth, fast filtration, nitrogen free. For breweries, used for malt analysis.

Medium-fast.

• Embossed
• For determination of sugar content, colour, essential oils and emulsions
• Weight: 75 g/m²
• Thickness: 0.25 mm