WHA1542070

Whatman^® quantitative filter paper, hardened ashless, Grade 542

circles, diam. 70 mm, pack of 100

• Sinónimos: Whatman filter, Z241458, filter paper, paper filter
• Código UNSPSC: 41104900
• NACRES: NB.24

Propiedades

• Materiales: circles ; cotton filters (high-quality cotton linters)
• envase: pack of 100
• fabricante / nombre comercial: Whatman 1542-070; Whatman Article No. 28418248 (US reference)
• Parámetros: 2510 sec/100 mL speed (Herzberg); 6 psi wet burst
• Diámetro: 70 mm
• grosor: 150 μm
• ceniza: ≤0.006%
• tamaño de poro: 2.7 μm (Particle retention)
• peso básico: 93 g/m²

Descripción

Descripción general

These are the supreme hardened ashless quantitative filter papers featuring high wet strength and chemical resistance. These papers are acid hardened, which reduces ash to an extremely low level. Their tough surfaces make them suitable for a wide range of critical analytical filtration operations. Each grade offers a convenient combination of filtration speed and particle retention.

Grade 542: 2.7 μm (slow filter paper)
High retention of fine particles under demanding conditions. Slow flow rate. Very hard and strong with excellent chemical resistance. Often used in gravimetric metal determinations.

Características y beneficios

• High wet-strength
• Acid-hardened for resistance to strong acid and alkali solutions
• Nominal particle retention rating of 2.7 µm
• Herzberg filtration speed of 2510 s
• Extremely low ash content (0.006% ash maximum)

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