Tubular tips for hand-held technical pens using India ink on tracing paper -- Part 2: Performance, test parameters and test conditions
The requirement apply to tubular tips designated and marked in accordance with ISO 9175-1. The permissible deviations in the line thickness are given in a table and are used as a basis for the determination of the line quality. Describes the measurement of the line thickness.
A standard is reviewed every 5 years
Revisions / Corrigenda