ISO 20318-1:2019 通用机械铅笔和引线 分类、尺寸、质量和试验方法 第1部分：机械铅笔

标准编号：ISO 20318-1:2019

中文名称：通用机械铅笔和引线 分类、尺寸、质量和试验方法 第1部分：机械铅笔

英文名称：Mechanical pencils and leads for general use — Classification, dimensions, quality and test methods — Part 1: Mechanical pencils

发布日期：2019-02

标准范围

This document specifies classification, dimensions, quality and test methods for hand-held mechanical pencilss which hold and feed out a lead, and are used for general writing. It is also applicable to multi- function pens equipped with a mechanical pencil unit. However, those pencils attached to machinery instruments such as a plotter are excluded.

标准预览图