EN ISO 14660-2:1999/prA1

Geometrical Product Specifications (GPS) - Geometrical features - Part 2: Extracted median line of a cylinder and a cone, extracted median surface, local size of an extracted feature (ISO 14660-2:1999/DAM 1:2010)

2013-02-19: WI deleted due to cancellation of equivalent ISO Project

Geometrische Produktspezifikation (GPS) - Geometrieelemente - Teil 2: Erfasste mittlere Linie eines Zylinders und eines Kegels, erfasste mittlere Fläche, örtliches Maß eines erfassten Geometrieelementes (ISO 14660-2:1999/DAM 1:2010)

Spécification géométrique des produits (GPS) - Éléments géométriques - Partie 2: Ligne médiane extraite d'un cylindre et d'un cône, surface médiane extraite, taille locale d'un élément extrait (ISO 14660-2:1999/DAM 1:2010)

Specifikacija geometrijskih veličin izdelka - Geometrijske značilnosti - 2. del: Povzeta srednja linija valja in stožca, povzeta srednja površina, lokalna velikost povzete značilnosti (ISO 14660-2:1999/DAM 1:2010)

General Information

• Status: Not Published
• Publication Date: 20-May-2012
• Withdrawal Date: 20-Nov-2012
• ICS: 01.040.07 - Natural and applied sciences (Vocabularies)
• ICS: 01.100.20 - Mechanical engineering drawings
• ICS: 17.040.01 - Linear and angular measurements in general
• ICS: 17.040.10 - Limits and fits
• ICS: 17.040.30 - Measuring instruments
• Technical Committee: CEN/TC 290 - Dimensional and geometrical product specification and verification
• Drafting Committee: CEN/TC 290 - Dimensional and geometrical product specification and verification
• Current Stage: 4098 - Decision to abandon - Enquiry
• Start Date: 05-Dec-2011
• Completion Date: 05-Dec-2011
• Ref Project: SIST EN ISO 14660-2:2002/oprA1:2010 - Geometrical Product Specifications (GPS) - Geometrical features - Part 2: Extracted median line of a cylinder and a cone, extracted median surface, local size of an extracted feature (ISO 14660-2:1999/DAM 1:2010)

Relations

• Amends: EN ISO 14660-2:1999 - Geometrical Product Specifications (GPS) - Geometrical features - Part 2: Extracted median line of a cylinder and a cone, extracted median surface, local size of an extracted feature (ISO 14660-2:1999)
• Effective Date: 01-Jun-2010

Overview

EN ISO 14660-2:1999/prA1 is a draft amendment to the international standard focusing on Geometrical Product Specifications (GPS) and, specifically, the definitions and measurement principles for geometrical features such as the extracted median line of a cylinder and a cone, extracted median surface, and local size of an extracted feature. Developed by the CEN Technical Committee CEN/TC 290 in collaboration with ISO/TC 213, this amendment proposes refinements to vocabulary and specification processes relevant for manufacturing and inspection activities. Such standards are essential for quality assurance, metrology, and ensuring compatibility and interchangeability of parts across different industries.

Key Topics

• Extracted Median Line: Defines the principle of ‘median line’ as it applies to cylindrical and conical features, which is the line constructed from measured data points on the surface.
• Extracted Median Surface: Specifies how to determine the median surface from actual, extracted data, facilitating consistent measurement across different products and processes.
• Local Size of Extracted Feature: Outlines how to establish and assess the local size at any given cross-section of a feature during inspection.
• Extracted Centre of a Sphere: Details methods for obtaining the centre of a sphere from measured data, using the concept of the least squares associated sphere.
• Generator Line Straightness: Introduces how to specify the straightness of a generator line, setting out that the generator line is defined by the least squares axis for the feature.

Applications

The provisions of EN ISO 14660-2:1999/prA1 play a pivotal role in:

• Manufacturing and Quality Control: Enabling precise, repeatable, and internationally harmonized methods for measuring and specifying cylindrical, conical, and spherical features on parts. This is critical in sectors such as automotive, aerospace, and precision engineering.
• Metrology and Inspection: Providing clear terminology and default assumptions for measurement, reducing ambiguity during dimensional verification processes.
• Product Design and Documentation: Ensuring that design, drafting, and CAD teams use consistent, clearly understood geometrical definitions to specify requirements for part features.
• Interoperability and Compliance: Supporting manufacturers’ ability to comply with international requirements, facilitating trade, and participation in global supply chains.

Related Standards

This amendment aligns with and references several related standards in the Geometrical Product Specifications (GPS) framework:

• ISO 14660-1: GPS - Geometrical features - Part 1: General terms and definitions.
• ISO 1101: Technical product documentation - Geometrical tolerancing - Tolerances of form, orientation, location, and run-out.
• ISO 5459: GPS - Geometrical tolerancing - Datums and datum systems.
• ISO 17450: GPS - General concepts and requirements for GPS standards.
• ISO/IEC Directives Part 2: Principles of drafting and presentation of standards.

Organizations involved in dimensional and geometrical product verification are encouraged to familiarize themselves with the vocabulary and methodologies introduced in EN ISO 14660-2:1999/prA1 to ensure best practices in product specification and global market compliance.

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Keywords: Geometrical Product Specifications, GPS, extracted median line, extracted median surface, local size, cylinder, cone, sphere centre, generator line straightness, metrology, dimensional inspection, CEN, ISO 14660-2

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2010
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Geometrical Product Specifications (GPS) - Geometrical features - Part 2: Extracted
median line of a cylinder and a cone, extracted median surface, local size of an extracted
feature (ISO 14660-2:1999/DAM 1:2010)
Geometrische Produktspezifikation (GPS) - Geometrieelemente - Teil 2: Erfasste mittlere
Linie eines Zylinders und eines Kegels, erfasste mittlere Fläche, örtliches Maß eines
erfassten Geometrieelementes (ISO 14660-2:1999/DAM 1:2010)
Spécification géométrique des produits (GPS) - Éléments géométriques - Partie 2: Ligne
médiane extraite d'un cylindre et d'un cône, surface médiane extraite, taille locale d'un
élément extrait (ISO 14660-2:1999/DAM 1:2010)
Ta slovenski standard je istoveten z: EN ISO 14660-2:1999/prA1
ICS:
01.040.07 Matematika. Naravoslovne Mathematics. Natural
vede (Slovarji) sciences (Vocabularies)
17.040.01 Linearne in kotne meritve na Linear and angular
splošno measurements in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
EN ISO 14660-2:1999
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
August 2010
ICS 01.100.20; 17.040.01
English Version
Geometrical Product Specifications (GPS) - Geometrical
features - Part 2: Extracted median line of a cylinder and a cone,
extracted median surface, local size of an extracted feature (ISO
14660-2:1999/DAM 1:2010)
Spécification géométrique des produits (GPS) - Éléments Geometrische Produktspezifikation (GPS) -
géométriques - Partie 2: Ligne médiane extraite d'un Geometrieelemente - Teil 2: Erfasste mittlere Linie eines
cylindre et d'un cône, surface médiane extraite, taille locale Zylinders und eines Kegels, erfasste mittlere Fläche,
d'un élément extrait (ISO 14660-2:1999/DAM 1:2010) örtliches Maß eines erfassten Geometrieelementes (ISO
14660-2:1999/DAM 1:2010)
This draft amendment is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee CEN/TC 290.

This draft amendment A1, if approved, will modify the European Standard EN ISO 14660-2:1999. If this draft becomes an amendment,
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this
amendment into the relevant national standard without any alteration.

This draft amendment was established by CEN in three official versions (English, French, German). A version in any other language made
by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14660-2:1999/prA1:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 14660-2:1999/prA1:2010) has been prepared by Technical Committee ISO/TC 213
“Dimensional and geometrical product specifications and verification” in collaboration with Technical
Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” the secretariat of
which is held by AFNOR.
This document is currently submitted to the parallel Enquiry.
Endorsement notice
The text of ISO 14660-2:1999/DAM 1:2010 has been approved by CEN as a EN ISO 14660-2:1999/prA1:2010
without any modification.
DRAFT AMENDMENT ISO 14660-2:1999/DAmd 1
ISO/TC 213 Secretariat: DS
Voting begins on: Voting terminates on:
2010-08-12 2011-01-12
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Geometrical Product Specifications (GPS) — Geometrical
features —
Part 2:
Extracted median line of a cylinder and a cone, extracted median
surface, local size of an extracted feature
AMENDMENT 1
Spécification géométrique des produits (GPS) — Éléments géométriques —
Partie 2: Ligne médiane extraite d'un cylindre et d'un cône, surface médiane extraite, taille locale d'un élément
extrait
AMENDEMENT 1
ICS 01.100.20; 17.040.01
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.
To expedite distribution, this document is circulated as received from the
...