Reference number
ISO 9175-1:1988
ISO 9175-1:1988
© ISO 2024
International Standard
ISO 9175-1:1988
Tubular tips for hand-held technical pens using India ink on tracing paper — Part 1: Definitions, dimensions, designation and marking
Edition 1
1988-11
1988-11
ISO 9175-1:1988
16778
Publicado
(Edición 1, 1988)
Esta publicación se revisó y confirmó por última vez en 2021.
Por lo tanto, esta versión es la actual.
Resumen
The purpose is that a consistent line thickness within permissible tolerances is ensured with or without lettering giudes and templates. Applies to commonly used draughting operations such as tracing, writing and lettering. Part 2 deals with performance, test parameters and test conditions.