WHA1442240

Whatman^® Filterpapier für die quantitative Analyse, aschefrei, Güte 42

circles, diam. 240 mm, pack of 100

• Synonym(e): Whatman paper, Z241156, filter papers, paper filter
• UNSPSC-Code: 41104900
• NACRES: NB.24

Eigenschaften

• Materialien: circles ; cotton filters (high-quality cotton linters)
• Verpackung: pack of 100
• Hersteller/Markenname: Whatman 1442-240; Whatman Article No. 28418048 (US reference)
• Parameter: 0.40 psi wet burst; 1870 sec/100 mL speed (Herzberg)
• Durchmesser: 240 mm
• Dicke: 200 μm
• Asche: ≤0.007%
• Porengröße: 2.5 μm (Particle retention)
• Grundgewicht: 100 g/m²

Beschreibung

Allgemeine Beschreibung

Hochleistungsfilter, besonders für kleinste und feinste Niederschläge.

Anwendung

Whatman ashless quantitative filter papers are high-purity filters that support accurate analysis in applications sensitive to very low levels of background contamination and in gravimetric analysis where ash content might affect weight measurements of combusted samples. Cytiva′s high-purity Whatman ashless filter papers are suited for

• Environmental analysis: soil filtration analysis, when separating solid matter from aqueous extracts
• Retention of small particles
• Collection of trace elements and radionuclides from the atmosphere

Leistungsmerkmale und Vorteile

• Ashless: 0.007% ash maximum
• Fine (2.5 µm) nominal particle retention rating, eliminates large particles that might otherwise interfere with sensitive instrumentation
• Herzberg filtration speed of 1870 s
• Commonly used as a calcium carbonate filter
• Particularly suitable for gravimetric analysis

Sonstige Hinweise

Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.

Rechtliche Hinweise

Whatman is a registered trademark of Cytiva