Laboratory
303
What is Grade 303?
This grade has a larger pore size than Grade 301, but with a lower filtration speed. Grade 303 also has higher absorption than Grade 301 and it is used in general laboratory applications. Grade 303 is also found in agricultural and environmental laboratories for plant growth trials, soil testing and air analysis for monitoring specific contaminants and in the filtration of organic and sulfide precipitates.
| Whatman Cross Reference | = No.2 |
|---|---|
| Speed class | Medium Filtering |
| Thickness (mm) | 0.16 |
| Pore size (μM) | 5-8 |
| Weight (g/m²) | 87 |
| Filtration Speed (sec*) | 50 |
| Burst Strength (Kg/cm²) | > 0.10 |
| Diameter (mm) | Product Code |
|---|---|
| mm: 55 | Product code: 303055 |
| mm: 70 | Product code: 303070 |
| mm: 90 | Product code: 303090 |
| mm: 110 | Product code: 303110 |
| mm: 125 | Product code: 303125 |
| mm: 150 | Product code: 303150 |
| mm: 185 | Product code: 303185 |
| mm: 240 | Product code: 303240 |
| mm: 300 | Product code: 303300 |
| mm: 320 | Product code: 303320 |