Macherey-Nagel

• Duotest indicator papers combine 2 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

• Gr

• 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 antimony [Sb(III)]

• In the presence of antimony [Sb(III)], it shows orange-red spots on a yellow background

• Pentavalent antimony, i.e. Sb(V), has to be reduced to Sb(III) with metallic magn

• Fastest, wet-strengthened, quantitative filter paper with highest flow rate

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

• The smooth surface allows fiber-free filtration, even for high

• 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): 2.8

• Gradation: 0 - 0.1 - 0.3 - 0.6 - 1 - 2 - 3 g/L NO2-

• Color change: yellow to red

• The fastest qualitative filter paper with highest flow rate

• This very soft filter paper is used for example in routine clean up of large volumes of sample with coarse particles

• Surface: Smooth

• Basis weight: 85 g/m2 <

• MN 615
• Equivalent to Whatman Grade No. 1
• Medium fast filtration for general laboratory use

• Equivalent to Whatman No. 40

• Ashless filter paper, which is slightly more retentive than MN 640 m with corresponding increase in filtration time

• Surface: Smooth

• Basis weight: 85 g/m2

• Thickness: 0.2 mm

• Particularly suitable for high range applications in disinfectant solutions used in food & beverage industry and animal farms

• White paper turns blue-violet in the presence of chlorine

• Gradation (Chlorine): 10 - 50 - 100 - 200 m

• 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

• Allows the easy and reliable detection of hydrogen sulphide, which occurs in the processing of raw oil. It is toxic even in low concentrations. Therefore, critical points are carefully checked. Sulfide ions in solution also give a positive reactio

• 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

• Gradation (pH): 12.0 - 12.5 - 13.0 - 13.5 - 14.0

• 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 measurement of the water amount at the bottom of petrol and fuel oil tanks

• In petrol and fuel oil tanks, water accumulates over time building a layer at the bottom. To measure this layer the PE strip is fixed ont

• Fastest, wet-strengthened, quantitative filter paper with highest flow rate

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

• The smooth surface allows fiber-free filtration, even for high

• 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): 3.8