Inicio/ISO 6344Articulo de referenciaISO 6344ISO 6344 is an international standard covering the materials sizes and tests regarding sandpaper and other similar coated abrasives . It has three parts: ISO 6344-1:1998 : Grain...Hispanopedia WikiContenido en espanolLectura gratuita ISO 6344 is an international standard covering the materials sizes and tests regarding sandpaper and other similar coated abrasives. It has three parts: ISO 6344-1:1998: Grain size distribution test ISO 6344-2:1998: Determination of grain size distribution of macrogrits P12 to P220 ISO 6344-3:1998: Determination of grain size distribution of microgrits P240 to P2500 External links ISO.org vte