This International Standard presents a test method for the comparative characterization of pulse-jet cleanable filter media, to be used in filter elements (e.g. bag filters, pocket filters, cartridge filters) applied in dry gas cleaning under standardized test conditions. These test conditions have been selected among many possible ones and are intended to represent a typical operating mode of such filters so that the test will focus on comparability of different filter media under prescribed standard conditions indicating the operating and separation behaviour of various filter media during practical use. The main purpose of testing is to gain information