WHA1004041

Whatman^® qualitative filter paper, Grade 4

circles, diam. 41 mm, pack of 100

• Sinônimo(s): Z759791
• Código UNSPSC: 41104900
• NACRES: NB.24

Propriedades

• Materiais: cellulose filters; circles
• embalagem: pack of 100
• fabricante/nome comercial: Whatman 1004-041; Whatman Article No. 28414006 (US reference)
• Parâmetros: 0.22 psi wet burst; 37 sec/100 mL speed (Herzberg)
• Diâmetro: 41 mm
• espessura: 205 μm
• cinzas: ≤0.06%
• tamanho de poro: 20-25 μm (Particle retention)
• peso base: 92 g/m²

Descrição

Descrição geral

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.

Outras notas

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

Informações legais

Whatman is a registered trademark of Cytiva