Cylindrical filter paper No. 88RH (ID 22mm OD 25mm L 90mm) 10 pieces 35820251 1 box (10 pieces)

This cylindrical filter paper is heat treated at 900 degrees to minimize weight loss at constant weight and is intended for measuring dust concentration in high-temperature exhaust gas. Since it does not use an alumina binder and is made only of silica fibers, it has low reactivity with acid gases such as SOx and NOx and sulfuric acid mist, making it possible to measure the amount of dust in acid gases. It is mainly used to measure dust concentration in exhaust gas. *No.88R and No.88RH are dust samplers for gas. They cannot be used for filtering liquids. *When filtering gas, the filter may be damaged if it gets wet. In such a case, we recommend using No. 89 or No. 89S, which have water repellent properties. Composition: Silica fiber Weight (g/piece): 1.6 Thickness (mm): 2.2 Pressure loss (kPa): 0.44 Collection efficiency (0.3μm DOP%): >99.9 Maximum operating temperature (℃): 1000 Heat loss (%): 0.1 *Pressure loss: Value when using a product with OD 25mmL 90mm and an air flow rate of 5L/min. Collection efficiency: Collection efficiency when air containing dispersed 0.3μm dioctyl phthalate particles is filtered at an air flow rate of 5L/min using a product with an OD of 25mm and L of 90mm. Retained particle size: The particle size that can retain 90% or more of the seven types of powder dispersion specified in JIS Z 8901 when naturally filtered.