FilterPaper, quantitative, wet-strength, round filters
Hardened ashless filters (approx. 0.002%), especially recommended for vacuum and pressure filtration, and for the use of acidic and alkaline solutions.
-Acid-washed and rinsed with water
-Free of minerals and metallic ions, ideal for the detection of trace metals
-High wet strength, easy to scrape off or wash off precipitates
-High resistance to aggressive chemical components, like sulphuric and nitric acids (up to 40 % at 50 °C) and alkalis (up to 10 % at 20 °C)

Type 1505
Diam. 110 mm
Weight 88 g / m²
Filtration time acc. to Herzberg 50 s
Thickness 0.17 mm