What is BS EN ISO 13920:2010?

BS EN ISO 13920:2010 is an international standard that provides guidelines for the technical drawing of welded structures. This standard specifies the requirements for the geometrical tolerances of welded structures and provides a clear understanding of the symbols and terminology used in technical drawings.

Importance of Technical Drawings

Technical drawings play a crucial role in engineering, manufacturing, and construction industries. They serve as a universal language that communicates design information accurately and effectively. Without proper technical drawings, it would be challenging to convey complex designs and specifications, leading to errors, misunderstandings, and potential failures.

Technical drawings not only provide essential information about dimensions and shapes but also outline the necessary manufacturing processes, materials, and assembly instructions. They are the backbone of any successful project, ensuring consistency, precision, and compliance with industry standards.

The Purpose of BS EN ISO 13920:2010

The primary purpose of BS EN ISO 13920:2010 is to establish a common set of rules for creating and interpreting technical drawings of welded structures. It aims to eliminate ambiguity and misinterpretation, enabling engineers, fabricators, and welders across different countries and organizations to work seamlessly together.

This standard defines various geometrical tolerances such as straightness, flatness, circularity, and angularity, providing explicit guidelines on how to represent them correctly on technical drawings. By adhering to these guidelines, professionals can ensure the accuracy and quality of welded structures, minimizing errors and potential safety hazards.

Understanding BS EN ISO 13920:2010 Terminology

To effectively utilize BS EN ISO 13920:2010, it is essential to understand the terminology used within the standard. Here are some key terms:

Geometrical Tolerance: A permissible variation from the specified geometrical form of a part.

Welding Symbol: A symbol used in technical drawings to represent welds and provide essential information about their characteristics, locations, and dimensions.

Welded Joint: The junction of two or more parts that have been joined together by welding.

Straightness: The condition of a line or surface that is free from deviation.

Flatness: The condition of a surface that has no higher points (peaks) or lower points (valleys).

Circularity: The condition of a circle where every point on its circumference is equidistant from its center.

Angularity: The condition of an angle or angular feature that deviates from a specified reference plane or line.

By familiarizing themselves with these and other terms outlined in BS EN ISO 13920:2010, professionals can accurately interpret technical drawings and apply the appropriate geometrical tolerances in their work.