This International Standard specifies the nominal sizes of openings for metal wire cloth, perforated metal plate and electroformed sheet as sieving media in test sieves. It applies to - metal wire cloth with square openings; - perforated metal plate and electroformed sheet with square or circular openings.
GSO ISO 565:2008 history
2008GSO ISO 565:2008 Test Sieves-Metal wire cloth, perforated metal plate and electroformed sheet-Nominal sizes of opening