ISO 9177-3:1994
Mechanical pencils — Part 3: Black leads — Bending strengths of HB leads
Reference number
ISO 9177-3:1994
Edición 1
1994-07
Retirada
ISO 9177-3:1994
20426
Retirada (Edición 1, 1994)

Resumen

Specifies bending strengths and a test method for black leads of HB hardness degree used for mechanical pencils for technical drawings.

Informaciones generales

  •  : Retirada
     : 1994-07
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 3
  • ISO/TC 10
    97.180  01.100.40 
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