Description
A standard grade clarifying filter excellent for cloudy suspensions and for water and soil analysis. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
Grade 5: 2.5 µm
The maximum degree of fine particle filtration in the qualitative range. Capable of retaining the fine precipitates encountered in chemical analysis. Slow flow rate. Excellent clarifying filter for cloudy suspensions and for water and soil analysis. Also available prepleated as Grade 5V.
| Parameter |
Grade 5 Qualitative Filter Paper Standard Grade, Circle |
| Grade : |
Grade 5 |
| Grade Type : |
Standard |
| Diameter : |
25mm, 42.5mm, 47mm, 55mm, 60mm, 70mm, 90mm, 110mm, 125mm, 150mm, 185mm, 240mm, 320mm |
| Typical Particle Retention in Liquid1 : |
2.5 µm |
| Nominal Thickness : |
200µm |
| Typical water flow rate2 : |
5 ml/min |
| Nominal Basis Weight : |
100g/m² |
| Nominal Air Flow Rate : |
96 s/100 ml/in² |
| Nominal Ash Content3 : |
0.06% |
| Material : |
Cellulose |
| Typical Trace Element Levels: |
Aluminium 2.5 µg/g Antimony less than 0.5 µg/g Arsenic less than 0.5 µg/g Barium less than 0.5 µg/g Boron less than 1 µg/g Calcium 8.3 µg/g Chromium 1.5 µg/g Copper 2 µg/g Iron 12 µg/g Lead less than 0.5 µg/g Magnesium 4 µg/g Manganese less than 0.5 µg/g Mercury less than 0.5 µg/g Potassium 2.3 µg/g Silicon 6.2 µg/g Sodium 16.8 µg/g Zinc 64.5 µg/g |
| Application : |
Excellent clarifying filter for cloudy suspensions and for water and soil analysis. |
| Format : |
Circles |
| Dimensions : |
Ø25mm, Ø42.5mm, Ø47mm, Ø55mm, Ø60mm, Ø70mm, Ø90mm, Ø110mm, Ø125mm, Ø150mm, Ø185mm, Ø240mm, Ø320mm |
- 1Particle retention rating at 98% efficiency.
- 2For 9 cm diameter
- 3Ash is determined by ignition of the cellulose filter at 900°C in air.
