NEN-ISO 20318-1:2019 en
Current
Current
The latest, up-to-date edition.
Mechanical pencils and leads for general use - Classification, dimensions, quality and test methods - Part 1: Mechanical pencils
Available format(s)
Hardcopy
Language(s)
English
Published date
28-03-2019
Publisher
NEN-ISO 20318-1specifies classification, dimensions, quality and test methods for hand-held mechanical pencilss which hold and feed out a lead, and are used for general writing.
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