EN ISO 6412-2:2018
(Main)Technical product documentation - Simplified representation of pipelines - Part 2: Isometric projection (ISO 6412-2:2017)
Technical product documentation - Simplified representation of pipelines - Part 2: Isometric projection (ISO 6412-2:2017)
ISO 6412-2:2017 specifies supplementary rules, in addition to the general rules given in ISO 6412-1, applicable to isometric representation. Isometric representation is used where it is necessary to show the essential features clearly in three dimensions.
Technische Produktdokumentation - Vereinfachte Darstellung von Rohrleitungen - Teil 2: Isometrische Darstellung (ISO 6412-2:2017)
Documentation technique de produits - Représentation simplifiée des tuyaux et lignes de tuyauteries - Partie 2: Projection isométrique (ISO 6412-2:2017)
ISO 6412-2:2017 spécifié les règles complémentaires aux règles générales données dans l'ISO 6412‑1, applicables à la représentation isométrique. La représentation isométrique est utilisée lorsqu'il est nécessaire de montrer les éléments essentiels clairement en trois dimensions.
Tehnična dokumentacija izdelkov - Poenostavljeno prikazovanje cevovodov - 2. del: Izometrična projekcija (ISO 6412-2:2017)
Ta dokument določa dodatna pravila k splošnim pravilom, podanim v standardu ISO 6412-1, ki se uporabljajo za izometrično predstavitev. Izometrična predstavitev se uporablja tam, kjer je treba prikazati ključne značilnosti na jasen način v treh dimenzijah.
General Information
- Status
- Published
- Publication Date
- 06-Feb-2018
- Withdrawal Date
- 30-Aug-2018
- Technical Committee
- CEN/SS F01 - Technical drawings
- Drafting Committee
- CEN/SS F01 - Technical drawings
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 07-Feb-2018
- Completion Date
- 07-Feb-2018
Relations
- Effective Date
- 08-Jun-2022
Overview
EN ISO 6412-2:2018 (ISO 6412-2:2017) - Technical product documentation - Simplified representation of pipelines - Part 2: Isometric projection - specifies supplementary rules for producing clear three‑dimensional pipeline isometrics. Intended as an addendum to ISO 6412-1, this standard defines how to show essential pipeline features in isometric projection for tender, manufacturing and erection drawings. The document was prepared by ISO/TC 10 and adopted by CEN as EN ISO 6412-2:2018.
Key topics
- Scope and coordination: Applies where isometric representation is needed in technical product documentation and ties into the general rules of ISO 6412-1.
- Coordinates and axes: Guidance on Cartesian coordinates for pipe assemblies and how coordinates must align with the overall installation.
- Line conventions and projections: Line types and isometric drawing conventions consistent with ISO 128-20 and ISO 129-1.
- Deviations from coordinate axes: Rules for representing pipes that are not parallel to coordinate planes using auxiliary hatched projection planes and specific projection methods for pipes in vertical/horizontal planes.
- Dimensioning rules: Supplementary rules for diameters and wall thickness, longitudinal and angular dimensions, bending radii and angles, levels and slopes, positions of pipe ends, redundant dimensioning, and instructions for dimensioning for pipe‑bending machines.
- Graphical symbols: Examples and conventions for valves, transition pieces (cones), supports and hangers, crossings, permanent junctions, general connections and flanges when drawn isometrically.
- Examples and implementation: Illustrative examples to help apply the rules in practical isometric pipeline drawings.
Applications
- Producing pipeline isometric drawings for process plants, mechanical engineering and construction projects.
- Creating manufacturing and erection drawings that reduce drafting time while improving clarity of three‑dimensional relationships.
- Preparing documents for procurement, fabrication (including pipe‑bending machines) and on‑site installation where unambiguous 3D representation is necessary.
- Standardizing how pipeline assemblies are communicated across engineering, fabrication and construction teams.
Who uses this standard
- Piping designers and engineers
- CAD technicians and drafters producing isometrics
- Plant and mechanical engineering firms
- Fabricators, erection contractors and machine programmers
- Procurement and quality teams relying on consistent technical product documentation
Related standards
- ISO 6412-1 (General rules and orthogonal representation)
- ISO 128-20 (Presentation)
- ISO 129-1 (Dimensioning and tolerances)
- ISO 3545-1, ISO 5261 (symbols and simplified representations)
Using EN ISO 6412-2:2018 ensures consistent, industry‑accepted isometric projection of pipelines, improving communication and reducing errors in pipeline design, fabrication and installation.
Frequently Asked Questions
EN ISO 6412-2:2018 is a standard published by the European Committee for Standardization (CEN). Its full title is "Technical product documentation - Simplified representation of pipelines - Part 2: Isometric projection (ISO 6412-2:2017)". This standard covers: ISO 6412-2:2017 specifies supplementary rules, in addition to the general rules given in ISO 6412-1, applicable to isometric representation. Isometric representation is used where it is necessary to show the essential features clearly in three dimensions.
ISO 6412-2:2017 specifies supplementary rules, in addition to the general rules given in ISO 6412-1, applicable to isometric representation. Isometric representation is used where it is necessary to show the essential features clearly in three dimensions.
EN ISO 6412-2:2018 is classified under the following ICS (International Classification for Standards) categories: 01.100.20 - Mechanical engineering drawings; 01.100.99 - Other standards related to technical drawings; 23.040.01 - Pipeline components and pipelines in general. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 6412-2:2018 has the following relationships with other standards: It is inter standard links to EN ISO 6412-2:1994. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN ISO 6412-2:2018 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2018
1DGRPHãþD
SIST EN ISO 6412-2:1998
7HKQLþQDGRNXPHQWDFLMDL]GHONRY3RHQRVWDYOMHQRSULND]RYDQMHFHYRYRGRY
GHO,]RPHWULþQDSURMHNFLMD,62
Technical product documentation - Simplified representation of pipelines - Part 2:
Isometric projection (ISO 6412-2:2017)
Documentation technique de produits - Représentation simplifiée des tuyaux et lignes de
tuyauteries - Partie 2: Projection isométrique (ISO 6412-2:2017)
Ta slovenski standard je istoveten z: EN ISO 6412-2:2018
ICS:
01.100.20 Konstrukcijske risbe Mechanical engineering
drawings
01.110 7HKQLþQDGRNXPHQWDFLMD]D Technical product
L]GHONH documentation
23.040.01 Deli cevovodov in cevovodi Pipeline components and
na splošno pipelines in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 6412-2
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2018
EUROPÄISCHE NORM
ICS 01.100.99; 23.040.01 Supersedes EN ISO 6412-2:1994
English Version
Technical product documentation - Simplified
representation of pipelines - Part 2: Isometric projection
(ISO 6412-2:2017)
Documentation technique de produits - Représentation
simplifiée des tuyaux et lignes de tuyauteries - Partie 2:
Projection isométrique (ISO 6412-2:2017)
This European Standard was approved by CEN on 22 October 2017.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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-CENELEC 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6412-2:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 6412-2:2018) has been prepared by Technical Committee ISO/TC 10 “Process
plant documentation”.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by August 2018, and conflicting national standards shall
be withdrawn at the latest by August 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 6412-2:1994.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 6412-2:2017 has been approved by CEN as EN ISO 6412-2:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 6412-2
Second edition
2017-12
Technical product documentation —
Simplified representation of
pipelines —
Part 2:
Isometric projection
Documentation technique de produits — Représentation simplifiée
des tuyaux et lignes de tuyauteries —
Partie 2: Projection isométrique
Reference number
ISO 6412-2:2017(E)
©
ISO 2017
ISO 6412-2:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
ISO 6412-2:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Coordinates . 1
5 Line conventions . 2
6 Deviations from the direction of coordinate axes . 2
6.1 General . 2
6.2 Pipes in a vertical plane . 2
6.3 Pipes in a horizontal plane . 2
6.4 Pipes not parallel to any coordinate plane. 3
6.5 Auxiliary projection planes . 3
7 Dimensioning and special rules . 4
7.1 General . 4
7.2 Diameters and wall thickness . 4
7.3 Longitudinal and angular dimensions . 4
7.4 Pipes with bends . 4
7.5 Radii and angles of bends . 4
7.6 Levels . 5
7.7 Direction of slope . 5
7.8 Positions of ends of pipes . 6
7.9 Redundant dimensioning . 6
7.10 Dimensioning for pipe-bending machines . 6
8 Graphical symbols . 6
8.1 General . 6
8.2 Examples of graphical symbols drawn with the isometric projection method . 7
8.2.1 Valves . 7
8.2.2 Transition pieces (cones) . 7
8.2.3 Supports and hangers. 8
8.2.4 Crossings . 8
8.2.5 Permanent junctions . 8
8.2.6 General connections. 8
8.2.7 Flanges . 9
9 Examples . 9
Bibliography .12
ISO 6412-2:2017(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the
...
The standard EN ISO 6412-2:2018 is a crucial document within the realm of technical product documentation, specifically targeting the simplified representation of pipelines through isometric projection. This standard enhances the foundational guidelines established in ISO 6412-1 by providing supplementary rules tailored for isometric representation, which is particularly advantageous for conveying essential features of pipelines in a clear three-dimensional format. One of the primary strengths of EN ISO 6412-2:2018 lies in its focused approach to isometric representation, ensuring that the depiction of complex pipeline features is intuitive and precise. This clarity is essential for engineers and designers, as it facilitates better understanding and communication regarding pipeline layouts and design specifications. The emphasis on three-dimensional clarity not only aids in visual interpretation but also minimizes the potential for errors during the design and construction phases. Furthermore, the relevance of this standard extends beyond mere documentation; it plays a critical role in enhancing collaboration among stakeholders in the pipeline industry. By adhering to the guidelines set forth in EN ISO 6412-2:2018, professionals can ensure that documentation is universally understood, thereby streamlining workflows and reducing miscommunication. Overall, EN ISO 6412-2:2018 is an indispensable standard for anyone involved in the technical documentation of pipelines. Its combination of specialized rules for isometric projection and focus on clear representation makes it a valuable tool for improving documentation practices and promoting effective communication in engineering teams.
La norme EN ISO 6412-2:2018 fournit des directives précises pour la documentation technique des produits, en se concentrant sur la représentation isométrique des pipelines. Cette norme est essentielle pour les professionnels cherchant à établir une communication claire et efficace à travers des représentations graphiques en trois dimensions. En ajoutant des règles spécifiques à celles déjà établies dans la norme ISO 6412-1, elle garantit que les caractéristiques essentielles d'un pipeline sont mises en évidence de manière compréhensible. Une des forces majeures de cette norme réside dans sa capacité à standardiser la façon dont les informations techniques sont présentées. La représentation isométrique, en particulier, permet de visualiser les dimensions et la disposition des éléments du pipeline, facilitant ainsi la compréhension pour les ingénieurs et techniciens. Cela aide non seulement à réduire les risques d'erreurs d'interprétation mais aussi à améliorer la communication entre les différentes parties impliquées dans le processus de conception et de fabrication. La pertinence de la norme EN ISO 6412-2:2018 ne peut être sous-estimée dans le contexte industriel actuel. Elle répond aux besoins croissants de normalisation dans le secteur de l'ingénierie et de la conception technique, où la précision et la clarté des représentations graphiques sont cruciales. En adoptant cette norme, les entreprises peuvent améliorer la qualité de leur documentation technique, ce qui conduit à une meilleure collaboration et à une plus grande efficacité opérationnelle. Dans l'ensemble, la norme EN ISO 6412-2:2018 est un instrument fondamental pour assurer une représentation isométrique efficace, renforçant ainsi la compréhension et l'application des concepts techniques dans le domaine des pipelines.
SIST EN ISO 6412-2:2018 표준은 파이프라인의 기술 제품 문서화에 대한 간소화된 표현을 다루며, 특히 아이소메트릭 투영에 초점을 맞추고 있습니다. 이 표준은 아이소메트릭 표현의 경우, ISO 6412-1에서 제공되는 일반 규칙 외에 추가 규칙을 명시하고 있습니다. 이 표준의 주요 강점은 복잡한 파이프라인 구성 요소를 명확하게 표현할 수 있도록 돕는 아이소메트릭 표현의 사용을 권장한다는 점입니다. 아이소메트릭 표현은 입체적으로 중요한 특징들을 효율적으로 보여줄 수 있어 제품 설계 및 제작 과정에서의 오해를 줄이는 데 기여합니다. 이를 통해 엔지니어들은 시각적으로 명확한 자료를 바탕으로 효율적인 의사 결정을 할 수 있습니다. SIST EN ISO 6412-2:2018은 기술 문서화의 표준화를 통해 파이프라인 설계와 제조 관련 종사자들에게 중요한 지침을 제공합니다. 또한, 이 표준은 특히 국제적으로 통일된 표현 방식을 제공하여, 글로벌 환경에서도 효과적인 커뮤니케이션을 가능하게 합니다. 따라서, 이 표준은 현대 산업에서 필수적인 자원으로서의 가치를 지니고 있습니다.
Die Norm EN ISO 6412-2:2018 bietet eine umfassende Grundlage für die technische Produktdokumentation, insbesondere im Hinblick auf die vereinfachte Darstellung von Rohrleitungen in isometrischer Projektion. Der Geltungsbereich dieser Norm ist klar definiert: Sie ergänzt die allgemeinen Regeln, die in ISO 6412-1 festgelegt sind, um spezifische Vorgaben für die isometrische Darstellung zu geben. Dies ist entscheidend, da die isometrische Darstellung es ermöglicht, die wesentlichen Merkmale von Rohrleitungen in drei Dimensionen klar und präzise darzustellen. Ein herausragendes Merkmal der EN ISO 6412-2:2018 ist ihre Fähigkeit, die Kommunikation zwischen Technologen, Ingenieuren und Herstellern zu verbessern. Durch die Standardisierung der isometrischen Projektion werden Missverständnisse reduziert und die Effizienz in der technischen Dokumentation erhöht. Der standardisierte Ansatz zur isometrischen Darstellung gewährleistet, dass wesentliche Informationen für den Bau, die Wartung und die Planung von Rohrleitungssystemen verständlich und einheitlich übermittelt werden. Die Relevanz dieser Norm erstreckt sich über verschiedene Branchen, die Rohrleitungssysteme einsetzen, einschließlich der Chemie-, Öl- und Gasindustrie. Der Gebrauch der EN ISO 6412-2:2018 stellt sicher, dass Unternehmen und Fachleute auf eine gemeinsame Basis zurückgreifen können, um ihre Projekte erfolgreich zu realisieren. Darüber hinaus fördert die Norm die Einhaltung internationaler Standards, was für Unternehmen von entscheidender Bedeutung ist, die global tätig sind oder internationale Partnerschaften eingehen. Zusammenfassend lässt sich sagen, dass die EN ISO 6412-2:2018 eine essenzielle Norm für die technische Produktdokumentation darstellt. Ihre spezifischen Richtlinien zur isometrischen Projektion sind nicht nur für die Klarheit und Präzision in der Darstellung von Rohrleitungen wichtig, sondern verbessern auch die allgemeine Effizienz und Qualität der technischen Kommunikation in verschiedenen Industriezweigen.
EN ISO 6412-2:2018は、パイプラインの技術的製品文書に関する重要な標準で、特にアイソメトリック投影に焦点を当てています。この標準はISO 6412-1の一般的な規則に加え、アイソメトリック表示に適用される補足規則を定めています。 この標準の範囲は、三次元での重要な特徴を明確に示す必要がある場合に非常に役立ちます。特に、パイプラインの設計や製造において、視覚的な理解を助けるために、アイソメトリック表現を利用することができます。これにより、関係者が仕様を正確に理解し、共有することができるため、プロジェクトの効率性が向上します。 EN ISO 6412-2:2018の強みは、明確なガイドラインを提供することであり、設計者やエンジニアがパイプラインの複雑な構造を直感的に把握できるように支援します。また、この標準は、国際的な整合性を持っているため、異なる国や地域での使用が容易であり、国際的な取引においても信頼性を高める要素となっています。 さらに、この標準は、技術的文書の一貫性を確保し、産業全体でのコミュニケーションを円滑にする点でも重要です。特に、パイプラインが設計・施工される環境において、エラーを最小限に抑え、品質を保証する手助けとなります。 ENT ISO 6412-2:2018は、アイソメトリック表示をより効率的に利用するための基盤を提供するものであり、技術者にとっての必携の標準と言えます。その適用範囲の広さと実用性は、技術的な製品文書作成における重要性を再確認させるものです。










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