Filter paper, qualitative

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.