NA 152
DIN Standards Committee Technical Fundamentals
Standards
[Withdrawn]
ISO 9177-2
ISO 9177-2
Mechanical pencils; part 2: black leads; classification and dimensions
Title (German)
Füllstifte; Graphitminen; Einteilung und Maße
Responsible national committee
NA 152-06 FBR - Steering Committee of Section Technical Product Documentation