WHA1004930

Whatman^® qualitative filter paper, Grade 4

sheets, W × L 580 mm × 580, pack of 100

• Sinónimos: Z752363
• Código UNSPSC: 41104900
• NACRES: NB.24

Propiedades

• Materiales: cellulose ; sheets
• Características: Grade 4
• envase: pack of 100
• fabricante / nombre comercial: Whatman 1004-930; Whatman Article No. 28414031 (US reference)
• Parámetros: 0.22 psi wet burst; 37 sec/100 mL speed (Herzberg)
• An × L: 580 mm × 580
• grosor: 205 μm
• ceniza: ≤0.06%
• tamaño de poro: 20-25 μm (Particle retention)
• peso básico: 92 g/m²

Descripción

Descripción general

Whatman Grade 4 Qualitative Filter Papers are a standard grade, high flow rate filter paper.

Excellent retention: captures coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. Fast filtration: useful for routine clean-up of biological fluids or organic extracts during analysis

Grade 4 Qualitative Filter Papers (20-25 µm particle retention) are available in a variety of sizes and formats including circles, sheets, and rolls. They are also available as prepleated filters, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

Características y beneficios

• Useful in qualitative analytical separations when Fast flow is required and the collection of fine particles is not critical.
• These cellulose filters are used in qualitative analytical techniques to determine and identify materials (e.g., in air pollution monitoring).

Otras notas

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

Información legal

Whatman is a registered trademark of Cytiva