Macherey-Nagel

• Fastest quantitative filter paper with highest flow rate

• Used in analytical procedures of samples with coarse or gelatinous particles

• Surface: Smooth

• Basis weight: 85 g/m2

• Thickness: 0.22 mm

• Fil

• Duotest indicator papers combine two different indicator zones on a single strip

• The zones are separated by a hydrophobic barrier, which effectively prevents mixing of the reaction colors and increases the mechanical stability

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• Filter paper with medium retention and flow rate

• This filter paper covers a wide range of filtration applications

• Surface: Smooth

• Basis weight: 85 g/m2

• Thickness: 0.2 mm

• Filtration speed: 27 s <

• Allows the quick and easy detection of free halogens (chlorine, bromine, iodine)

• Free nitrous acid HNO2 (not nitrite ions) interferes, but can be destroyed by addition of amidosulphuric acid

• Color reaction: pale-yellow to blue

• Unify pH indicator and reference color chart on one strip

• Any sample color has the same effect on both, the reference colors and the reactive pad, allowing unadulterated pH reading even in colored solutions

• Gradation (pH): 6.0

• Gradation: 0 - 0.5 - 2 - 5 - 10 - 25 mg/L H2O2

• Color change: white to blue

• Equivalent to Whatman No. 4

• Fast filter paper with excellent retention of coarse particles and gelatinous precipitates

• This soft filter paper is used for example in routine clean up of biological or organic solutions

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• Equivalent to Advantec Filter Paper No. 5B

• Equivalent to Whatman Filter Paper No. 43

• General purpose, ashless filter paper with medium speed and medium retention

• Typical applications include gravimetric analysis for

• Equivalent to Whatman No. 44

• Ashless, slow filter paper which is slightly less retentive than MN 640 d

• Surface: Smooth

• Basis weight: 70 g/m2

• Thickness: 0.16 mm

• Filtration speed: 100 s

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• Moisture indicator

• Without Cobalt Chloride

• Length: 60mm

• Width: 35mm

• Allows the quick and easy detection of water and water vapor

• On contact with water, the paper changes color from white to pink / lavender. The reaction is not reversible. Even after drying, the contact with water can clearly be proved <

• Wet-strengthened, slow, ashless filter paper with very fine particle retention

• Standard paper for critical gravimetric analysis of fine precipitates like barium sulfate or metastannic acid

• The smooth surface allows fiber-free f

• Fastest quantitative filter paper with highest flow rate

• Used in analytical procedures of samples with coarse or gelatinous particles

• Surface: Smooth

• Basis weight: 85 g/m2

• Thickness: 0.22 mm

• Fil

• Duotest indicator papers combine two different indicator zones on a single strip

• The zones are separated by a hydrophobic barrier, which effectively prevents mixing of the reaction colors and increases the mechanical stability

•

• Filter paper with medium retention and flow rate

• This filter paper covers a wide range of filtration applications

• Surface: Smooth

• Basis weight: 85 g/m2

• Thickness: 0.2 mm

• Filtration speed: 27 s <

• Allows the quick and easy detection of Chromate (CrO43-)

• Cr(III) ions must be converted to chromate prior to the detection

• For non-destructive testing of materials, apply a drop of acid solution (1 part hydrochloric acid 37 % +

• Unify pH indicator and reference color chart on one strip

• Any sample color has the same effect on both, the reference colors and the reactive pad, allowing unadulterated pH reading even in colored solutions

• Gradation (pH): 7.2

• Gradation: 0 - 1 - 3 - 10 - 30 - 100 mg/L H2O2

• Color change: white to blue

• CE-certified