Ahlstrom Medium Speed Qualitative Filter Paper, No 613, 11cm Diameter (Pack of 100)

Descripción

Ahlstrom standard qualitative filter papers are suitable for quadrant folded or gravity flow applications. These grades contain a high-level of alpha-cellulose that provides high purity but will weaken when wet. Not recommended for use in vacuum work or when wet handling is required. Maximum ash content is 0.012 percent. Number 613 is a strong filter paper with medium flow rate and retention. It is commonly used in student laboratories. This strong general-purpose filter is also useful in Buchner funnels for barium carbonate, lead chromate, and aberyllium hydroxides. Retention: 6.0 micrometers. Speed: 60 milliliters per minute.