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ISO 9177-2:1989

Mechanical pencils — Part 2: Black leads — Classification and dimensions ISO 9177-2:1989

Publication date:   Mar 16, 1989

95.99 Withdrawal of Standard   Jun 1, 2022

General information

95.99 Withdrawal of Standard   Jun 1, 2022

ISO

ISO/TC 10 Technical product documentation

International Standard

01.100.40   Drawing equipment | 97.180   Miscellaneous domestic and commercial equipment

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Scope

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.

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NOW

WITHDRAWN
ISO 9177-2:1989
95.99 Withdrawal of Standard
Jun 1, 2022

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PUBLISHED
ISO 9177-2:2022