Ahlstrom 0950-0900 Quantitative Filter Paper, 1.5 Micron, Slow Flow, Grade 95, 9cm Diameter (Pack of 100) 1.5 micrometer Retention, Grade 95, 9cm Diameter (Pack of 100) auspowers_batchfour it has a longer use

it has a longer use time and durable body

Diaphragms provide greater reliability as variations in the molding and rubber application process have been eliminated

Powerful and effective charging without a worry

A convenient way for kids to draw straight lines and measurements

Ahlstrom 0950-0900 Quantitative Filter Paper, 1.5 Micron, Slow Flow, Grade 95, 9cm Diameter (Pack of 100) 1.5 micrometer Retention, Grade 95, 9cm Diameter (Pack of 100) auspowers_batchfour it has a longer useAhlstrom 0950 0900 Quantitative Filter Paper, 1. 5 Micron, Slow Flow, Grade 95, 9cm Diameter (Pack of 100) Ahlstrom manufactures a series of extremely high purity, acid washed filter papers designed for use in analytical and gravimetric analysis. The quantitative grades are manufactured from top quality cotton linters using ultra pure, reverse osmosis water and are further treated with dilute acid to remove any remaining organic and inorganic