BS EN ISO 129-1:2019+A1:2021 Technical Product Documentation (TPD)

Presentation of Dimensions and Tolerances - General Principles

The BS EN ISO 129-1:2019+A1:2021 is an essential standard for professionals involved in technical product documentation. This comprehensive document provides the general principles for the presentation of dimensions and tolerances, ensuring clarity and consistency across technical drawings and documentation.

Released on January 21, 2021, this standard is the latest in the series, incorporating the most recent amendments to ensure it meets the current industry requirements. With a total of 76 pages, it offers detailed guidance and is a crucial resource for engineers, designers, and technical illustrators.

Key Features

• Standard Number: BS EN ISO 129-1:2019+A1:2021
• ISBN: 978 0 539 14393 5
• Status: Standard

This standard is part of the ISO 129 series, which is internationally recognized for setting the guidelines on how dimensions and tolerances should be presented in technical product documentation. The document is designed to be used by professionals across various industries, including manufacturing, engineering, and design, to ensure that all technical drawings are interpreted correctly and consistently.

Why Choose BS EN ISO 129-1:2019+A1:2021?

The importance of accurate and clear technical documentation cannot be overstated. Misinterpretations can lead to costly errors, delays, and even safety issues. By adhering to the guidelines set out in this standard, you can ensure that your technical documentation is precise and universally understood.

BS EN ISO 129-1:2019+A1:2021 provides a structured approach to dimensioning and tolerancing, which is crucial for maintaining quality and consistency in product development and manufacturing processes. It helps in reducing misunderstandings and errors, thereby improving communication between different departments and stakeholders.

Comprehensive Coverage

The document covers a wide range of topics related to dimensioning and tolerancing, including:

• Basic principles of dimensioning
• Methods for indicating dimensions and tolerances
• Application of tolerances in technical drawings
• Guidelines for the use of symbols and annotations

Each section is meticulously detailed, providing clear examples and illustrations to aid understanding. This makes it an invaluable tool for both seasoned professionals and those new to the field.

Global Relevance

As a part of the ISO standards, BS EN ISO 129-1:2019+A1:2021 is recognized and utilized worldwide. This global relevance ensures that your documentation practices are aligned with international standards, facilitating smoother collaboration with partners and clients across borders.

Stay Ahead with the Latest Amendments

The inclusion of the latest amendments in this edition means you are equipped with the most up-to-date information and practices. This is crucial in a rapidly evolving industry where staying current can provide a competitive edge.

Who Should Use This Standard?

This standard is ideal for:

• Engineers and designers involved in product development
• Technical illustrators and drafters
• Quality assurance professionals
• Manufacturing and production teams

By integrating this standard into your workflow, you can enhance the quality and clarity of your technical documentation, leading to improved product quality and customer satisfaction.

Conclusion

The BS EN ISO 129-1:2019+A1:2021 is more than just a standard; it is a comprehensive guide that empowers professionals to produce high-quality, precise, and universally understandable technical documentation. Whether you are looking to improve your current practices or are new to the field, this standard is an indispensable resource that will help you achieve excellence in technical product documentation.

BS EN ISO 129-1:2019+A1:2021

This standard BS EN ISO 129-1:2019+A1:2021 Technical product documentation (TPD). Presentation of dimensions and tolerances is classified in these ICS categories:

• 91.010.30 Technical aspects
• 01.100.01 Technical drawings in general
• 01.110 Technical product documentation

This document establishes the general principles for presentation of dimensions and associated tolerances that apply to 2D technical drawings in all disciplines and trades but which can also be applied to 3D applications.

This document does not cover the application of dimensional tolerances and their meaning. See ISO 14405‑1 for tolerancing principles. This document can only be used to describe the nominal model of a drawing, not the non-ideal surface model (skin model) used for tolerancing purposes (for more information on tolerancing specifications, see the list of GPS standards listed as normative reference or as bibliography)

Considering the ISO 14405 series, the presentation of tolerance indication is unambiguous when it is applied to a dimension which is a size and ambiguous when the dimension is not a size.

All rules presented in this document are available for any type of drawing (see ISO 29845).

In addition, this document introduces the concept of property indicators, developed length, between, surface indicators, flag notes and textual instructions.

NOTE 1 All figures are shown in 2D views only.

NOTE 2 Additional information and details for construction engineering are given in ISO 6284.