Macherey-Nagel

• Changes colour from red to blue when conditions change from acidic to alkaline
• General test for acidic or alkaline reaction
• pH range: 5.0 - 8.0
• Size: 10 x 70mm

• Equivalent to Advantec Filter Paper No. 5C

• Equivalent to Whatman Filter Paper No. 42

• Ashless, slow filter paper with very fine particle retention

• Standard paper for critical gravimetric analysis of fine precipitates

• With chemically bound indicators which prevents bleeding and therefore contamination of the sample

• Gradation (pH): 6.0 - 6.4 - 6.7 - 7.0 - 7.3 - 7.6 - 7.9 - 8.2 - 8.4 - 8.6 - 8.8 - 9.1 - 9.5 - 10.0

• Length: 85 mm

• Widt

• With chemically bound indicators which prevents bleeding and therefore contamination of the sample

• Gradation (pH): 0.3 - 0.7 - 1.0 - 1.3 - 1.6 - 1.9 - 2.3

• Length: 85 mm

• Width: 6 mm

• For use in Food processing industry

• Allows the quick and easy determination of Calcium in solutions

• Comes with all necessary reagents so that the measurement can immediately be started. Within 1 minute one gets a reliable resul

• Wet-strengthened, ashless, very slow filter paper for the filtration of finest particles in quantitative range

• The smooth surface allows fiber-free filtration, even for highly acidic and basic media

• Surface: Smooth

• B

• Equivalent to Whatman No. 41

• Fast, ashless filter paper

• Recommended for analytical procedures involving coarse particles or gelatinous precipitates

• Surface: Smooth

• Basis weight: 85 g/m2

• Thicknes

• Best-known indicator paper

• Violet indicator paper which changes to red under acid conditions and to blue under alkaline conditions

• 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 determination of Hydrosulfite (sodium dithionite)

• Used to determine the endpoint in the conversion of vat dyes to the leuco form

• Also called Hydrosulphite paper

• Color reaction: yellow to blue

• Wet-strengthened, general purpose, ashless filter paper with medium speed and medium retention

• Typical applications include gravimetric analysis for components, quantitative determinations of sediments and high purity clean up procedures

• Gradation (pH): 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11

• Gradation: < 200 > 400 > 800 > 1200 > 1600 mg/L SO4 2-

• Color change: red to yellow

• 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

•

• With chemically bound indicators which prevents bleeding and therefore contamination of the sample

• Gradation (pH): 0 - 0.5 - 1.0 - 1.5 - 2.0 - 2.5 - 3.0 - 3.5 - 4.0 - 4.5 - 5.0 - 5.5 - 6.0

• Length: 85 mm

• Width: 6 mm <

• Equivalent to Advantec Filter Paper No. 5C

• Equivalent to Whatman Filter Paper No. 42

• Ashless, slow filter paper with very fine particle retention

• Standard paper for critical gravimetric analysis of fine precipitates

• With chemically bound indicators which prevents bleeding and therefore contamination of the sample

• Gradation (pH): 1.7 - 2.0 - 2.3 - 2.6 - 2.9 - 3.2 - 3.5 - 3.8

• Length: 85 mm

• Width: 6 mm

• For use in Food processing industry and Aquaculture

• For the rapid and reliable determination of alkalinity or carbonate hardness in water

• The easy dip-and-read-procedure provides a reliable result within 30 seconds

• C

• Wet-strengthened, ashless, very slow filter paper for the filtration of finest particles in quantitative range

• The smooth surface allows fiber-free filtration, even for highly acidic and basic media

• Surface: Smooth

• B

• Equivalent to Whatman No. 41

• Fast, ashless filter paper

• Recommended for analytical procedures involving coarse particles or gelatinous precipitates

• Surface: Smooth

• Basis weight: 85 g/m2

• Thicknes