Resumen
Describes three patterns using round (circular) and square perforations. The sizes of holes range down to 2 mm for square holes and to 0.5 mm for round holes. Five ratios of pitch to hole are specified which result in nominal open areas ranging from about 60 % to 23 %.
Informaciones generales
-
Estado: PublicadoFecha de publicación: 1987-12Etapa: Norma Internacional confirmada [90.93]
-
Edición: 1Número de páginas: 5
-
Comité Técnico :ISO/TC 24/SC 8ICS :73.120
- RSS actualizaciones