This website is still in development. If any bugs or errors are found, please use the contact form to report them.
Product Menu

301

What is Grade 301?

Grade 301 is the slowest of the qualitative papers. This grade is used in qualitative analytical techniques to determine and identify materials. It is also extremely efficient in retaining very fine particles. Grade 301 is generally used for biological products, water analysis, soil analysis and fine precipitates such as cold precipitated barium sulfate. Grade 301 is additionally utilized with Buchner funnels and to clarify cloudy suspensions and wine.

Properties
Whatman Cross Reference = No.5
Speed class Very Slow Filtering
Thickness (mm) 0.14
Pore size (μM) 2-3
Weight (g/m²) 84
Filtration Speed (sec*) 180
Burst Strength (Kg/cm²) > 0.30
*According to DIN 53137
Available Sizes
Diameter (mm) Product Code
55 301055
70 301070
90 301090
110 301110
125 301125
150 301150
185 301185
240 301240
300 301300
320 301320