NA 062
DIN Standards Committee Materials Testing
Standards
[CURRENT]
ISO 9180
ISO 9180
Black leads for wood-cased pencils; classification and diameters
Title (German)
Graphitminen für holzgefaßte Stifte; Einteilung und Durchmesser
Responsible national committee
NA 152-06 FBR - Steering Committee of Section Technical Product Documentation