Description
Cytiva® Whatman® Filter Paper, Grade 5 Qualitative, 2.5 cm, 100/PK, 1005-325
Features:
- Standard grade clarifying filter—excellent for cloudy suspensions and for water and soil analysis
- Used in qualitative analytical techniques to determine and identify materials
Specifications:
| Grade | Grade 5 |
| Grade Type | Standard |
| Material | Cellulose |
| Nominal Ash Content1 | 0.06% |
| Nominal air flow rate | 96 s/100 ml/in2 |
| Nominal basis weight | 100 g/m2 |
| Nominal thickness | 200 µm |
| Typical Particle Retention in Liquid2 | 2.5 µm |
| Typical Trace Element Levels | Aluminium 2.5 µg/g, Antimony <0.5 µg/g, Arsenic <0.5 µg/g, Barium <0.5 µg/g, Boron <1 µg/g, Calcium 8.3 µg/g, Chromium 1.5 µg/g, Copper 2 µg/g, Iron 12 µg/g, Lead <0.5 µg/g, Magnesium 4 µg/g, Manganese <0.5 µg/g, Mercury <0.5 µg/g, Potassium 2.3 µg/g, Silicon 6.2 µg/g, Sodium 16.8 µg/g, Zinc 64.5 µg/g |
| Typical water flow rate3 | 5 ml/min |
| Diameter | 25 mm |
1Ash is determined by ignition of the cellulose filter at 900 °C in air
2Particle retention rating at 98% efficiency
3For 9 cm diameter
Specifications
| Application | Qualitative filtering and sample prep |
|---|---|
| Other | 100/PK |
| Dimensions | 2.5 cm diameter |
| Manufacturer | Cytiva |
| Model No | 1005-325 |