WHA1004055

Whatman^® qualitative filter paper, Grade 4

circles, diam. 55 mm, pack of 100

• Synonim(y): Whatman filter, Whatman filters, Whatman paper, Z240524, filter paper, filter papers, paper filter
• Kod UNSPSC: 41104900
• NACRES: NB.24

Właściwości

• Materiały: cellulose filters; circles
• opakowanie: pack of 100
• producent / nazwa handlowa: Whatman 1004-055; Whatman Article No. 28414010 (US reference)
• Parametry: 0.22 psi wet burst; 37 sec/100 mL speed (Herzberg)
• Średnica: 55 mm
• grubość: 205 μm
• popiół: ≤0.06%
• wielkość porów: 20-25 μm (Particle retention)
• gramatura: 92 g/m²

Opis

Opis ogólny

These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Grade 4: 20-25 μm, (very fast filter paper)
Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. Very useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis. Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.

Inne uwagi

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

Informacje prawne

Whatman is a registered trademark of Cytiva

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