Ссылочный номер
ISO 9177-2:1989
ISO 9177-2:1989
Mechanical pencils — Part 2: Black leads — Classification and dimensions
Версия 1
1989-03
В время отменен
ISO 9177-2:1989
16782
Отозвано (Версия 1, 1989)

Тезис

Two types are available, black leads in which the binding agent is an organic polymer (designated by the letter "P"), and black leads in which the binding agent is clay (designated by the letter "C"). Classification is made according to the degree of hardness. Part 1 deals with the classification, dimensions, performance requirements and testing.

Общая информация

  •  : Отозвано
     : 1989-03
    : Отмена международного стандарта [95.99]
  •  : 1
  • ISO/TC 10
    97.180  01.100.40 
  • RSS обновления

Жизненный цикл

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