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ISO 9177-2:2022

Mechanical pencils for technical drawings — Part 2: Black leads — Classification and dimensions

General information

Valid from 01.06.2022
ICS Groups
01.100.40 Drawing equipment 97.180 Miscellaneous domestic and commercial equipment
Directives or regulations
None

Standard history

Status
Date
Type
Name
01.06.2022
Main
ISO 9177-2:2022
16.03.1989
Main
ISO 9177-2:1989
This document specifies a classification and dimensions for black leads used for mechanical pencils for technical drawings.
Two types of black leads are available:
—    polymer leads (designated by the letter “P”);
—    ceramic leads (designated by the letter “C”).

Required fields are indicated with *

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Standard monitoring
English (PDF 780 KB)

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Main

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Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English