NEN ISO 9175-1 : 1990
Current
The latest, up-to-date edition.
TUBULAR TIPS FOR HAND-HELD TECHNICAL PENS USING INDIA INK OR TRACING PAPER - PART 1: DEFINITIONS, DIMENSIONS, DESIGNATION AND MARKING
01-12-2013
Specifies the dimension for tubular tips for hand-held technical pens using India ink on tracing paper, irrespective of their design and manufacture, to ensure consistent line thickness within predetermined specifications, with or without lettering guides and templates. Applies to commonly used draughting operations such as tracing, writing and lettering.
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