Whatman™ Grade 44 Quantitative Filter Paper
Cytiva
Kertas kuantitatif Whatman Grade 44 dari Cytiva adalah versi tipis dari kertas tanpa abu Grade 42. Ketipisannya mengurangi kandungan abu secara keseluruhan, membuat Grade 44 sangat cocok untuk analisis yang mengandalkan berat kering bebas abu.
- Pengukuran massa kering bebas abu yang akurat
- Peringkat retensi partikel nominal halus 3 m
- Kecepatan filtrasi (Herzberg 995 s)
- Ketebalan tipikal 180 m
| Parameter |
Grade 44 Ashless Filter Paper, Thin, 70 mm circle (100 pcs) |
| Grade |
Grade 44 |
| Format |
Circles |
| Type |
Ashless |
| Typical Particle Retention in Liquid1 |
3 µm |
| Nominal thickness |
176 µm |
| Typical water flow rate2 |
11 ml/min |
| Nominal basis weight |
80 g/m² |
| Nominal air flow rate |
56 s/100 mL/in² |
| Nominal Ash Content3 |
0.007% |
| Material |
High-quality cotton linters |
| Alpha Cellulose Content Min. |
≥98% |
| 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 |
| Application |
Designed for gravimetric analysis and the preparation of samples for instrumental analysis. |
| Dimensions |
Ø 70 mm |
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