Qualitative Filter Paper, 33 cm dia, White, Cellulose, Grade 613, Standard, Non Wet-strengthened Grade Type, Circle Format, 0.18 mm Thickness, 6 µm Particle Retention in Liquid, 70.2 g/m2 Nominal Basis Weight, Medium Flow, Fine Porosity
Ahlstrom grade 613 is a strong low ash filter paper commonly used in student laboratories and for other general purpose lab filtration tasks. Flow rate: medium. Retention: 6 µ. Ahlstrom offers a complete range of low ash filter papers for general laboratory work that provides you with the correct combination of particle retention filtration speed loading capacity and wet-strength. All our qualitative grades consist of > 95% super refined a-cellulose and linter fibers.
| Diameter | : | 33 cm |
| Grade | : | 613 |
| Color | : | White |
| Material (ml/min) | : | Cellulose |
| Ash Content | : | 0.06% |
| Grade Type | : | Standard, Non Wet-strengthened |
| Type | : | Qualitative |
| Alpha Cellulose Content | : | >95% Super Refined |
| Filtration Speed | : | 114 sec/100 ml (Herzberg) |
| Format | : | Circle |
| Particle Retention in Liquid | : | 6 µm |
| Properties | : | Medium Flow, Fine Porosity |
| Thickness | : | 0.18 mm |
| Typical Water Flow Rate | : | 60 ml/min |
| Wet Burst Pressure | : | 40.6 cm |
| Loading Capacity | : | Medium |
| Rapidity Filtration Speed | : | 60 ml/min |
| Klemm (Capillary Rise) | : | 25 mm/min |
| Frazier Air Permeability | : | 2.1 cfm/ft2 |
| Basis Weight | : | 70.2 g/m2 |