cytiva whatman filter circle gr 540 hardened ashless 125mm/100/pk
SKU
cytivawhatman-27
In stock
Brand
Cytiva Whatman
| Parameter | Grade 540 Ashless General Lab Filter Paper, 42.5 mm circles (100 pcs) |
|---|---|
| Grade | Grade 540 |
| Format | Circles |
| Type | Hardened Ashless |
| Typical Particle Retention in Liquid1 | 8 µm |
| Nominal thickness | 160 µm |
| Typical water flow rate2 | 97 ml/min |
| Nominal basis weight | 85 g/m² |
| Nominal air flow rate | 13 s/100 mL/in² |
| Nominal Ash Content3 | 0.005% |
| Material | High-quality cotton linters |
| Alpha Cellulose Content Min. | ≥98% |
| Typical Trace Element Levels | Aluminium 3.4 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 14.7 µg/g Chromium 1.1 µg/g Copper 8.2 µg/g Iron 16.3 µg/g Lead <0.5 µg/g Magnesium 3.3 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 3.7 µg/g Silicon <6 µg/g Sodium 17 µg/g Zinc 87.8 µg/g |
| Application | Frequently used in the gravimetric analysis of metals in acid/alkali solutions and in collecting hydroxides after precipitation by strong alkalis. |
| Diameter | 42.5 mm |
- 1Particle retention rating at 98% efficiency.
- 2For 9 cm diameter
- 3Ash is determined by ignition of the cellulose filter at 900°C in air.