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“ISO 9962:1992 Manually operated draughting machines – Part 1: Definitions, classification and designation” has been added to your cart. View cart
ISO 20318:2019
ISO 20318:2019 Mechanical pencils and leads for general use – Classification, dimensions, quality and test methods – Part 2: Black leads
CDN $115.00
Description
This document specifies classification, dimensions, quality and test methods for black leads used for mechanical pencils for general writing, as specified in ISO 20318-1.
Edition
1
Published Date
2019-03-05
Status
PUBLISHED
Pages
11
Language
English
Format
Secure PDF
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Abstract
This document specifies classification, dimensions, quality and test methods for black leads used for mechanical pencils for general writing, as specified in ISO 20318-1.
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ISO 20318:2019 Mechanical pencils and leads for general use – Classification, dimensions, quality and test methods – Part 1: Mechanical pencils
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