Macherey-Nagel

• 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

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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 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

• For the determination of Nitrite and pH

• Gradation: 0 - 1 - 5 - 10 - 20 - 40 - 80 mg/L NO2- (Nitrite)

• Gradation: 6.0 - 6.4 - 6.7 - 7 - 7.3 - 7.6 - 7.9 - 8.2 - 8.4 - 8.6 - 8.8 - 9.0 - 9.3 - 9.6 (pH)

• Color change: white

• 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 <

• 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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• MN 640 md
• Equivalent to Whatman Grade No. 40
• Ashless, medium fast filtration
• Eg for magnesium ammonium phosphate, zinc sulphide etc.

• 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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• For rapid control of fluoride concentrations

• Gradation (Fluoride): 0 - 2 - 5 - 10 - 20 - 50 - 100 mg/L F-

• Color change (Fluoride): red to white

• Allows the quick and easy detection of sulphite and sulfur dioxide

• In food analyzing laboratories, it is used to detect sulphite in meat products

• In medical diagnostic, it is used as a quick test on sulphite oxidase deficiency

• 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

• Singly sealed to ensure long-term stability and protection against many external influences

• Have to be placed in the plastic reel with color scale to be used

• 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 easy detection of arsine (AsH3) in the gas phase

• Arsenic in solutions has to be converted into AsH3 with Zn/acid and purged from the solution. The arsine is detected directly at the boundary layer between water and air

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• 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