WHA1001090

Whatman^® qualitative filter paper, Grade 1

circles, diam. 90 mm, pack of 100

• Sinónimos: Whatman filter, Whatman paper, Z240079, paper filter
• UNSPSC Code: 41104900
• NACRES: NB.24

Propiedades

• material: cellulose filters; circles
• packaging: pack of 100
• manufacturer/tradename: Whatman 1001-090; Whatman Article No. 28413914 (US reference)
• parameter: 0.25 psi wet burst; 150 sec/100 mL speed (Herzberg)
• diam.: 90 mm
• thickness: 180 μm
• ash: ≤0.06%
• pore size: 11 μm (Particle retention)
• basis weight: 87 g/m²

Descripción

General description

Grade 1: 11 μm (medium flow filter paper)

The most widely used filter paper for routine applications with medium retention and flow rate. 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.

Features and Benefits

• Qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate
• Agricultural soil analysis and seed testing procedures
• Industrial food processing techniques to extract liquid or separate solid foodstuffs from associated liquid
• Air pollution monitoring by collecting atmospheric dust from airflow and photometrically measuring the stain-intensity
• Gas detection by quantitative chromogenesis with optical reflectance

Other Notes

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

Legal Information

Whatman is a registered trademark of Cytiva