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B51-14 (R2019) – Boiler, pressure vessel, and pressure piping code

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ISO 20318:2019

ISO 20318:2019 Mechanical pencils and leads for general use – Classification, dimensions, quality and test methods – Part 1: Mechanical pencils

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Description

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.

Edition

1

Published Date

2019-02-26

Status

PUBLISHED

Pages

9

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

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.

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