ISO 9177-2:1989 PDF
Mechanical pencils — Part 2: Black leads — Classification and dimensions
Название (английский):
ISO 9177-2:1989
Mechanical pencils — Part 2: Black leads — Classification and dimensions
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 4
- Дата публикации:
- 16 марта 1989 г.
- Издание:
- ISO IS 9177 edition 1 version 1
- ICS:
- 01.100.40
Описание (английский):
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.
Технические детали
- Технический комитет
- ISO/TC 10 - Technical product documentation
- SKU
- ISO 9177-2:1989