Introduction to ISO GPS

A one-day overview of the ISO Geometrical Product Specification (GPS) system and its requirements for engineering documentation.

Course Description:

This one-day course provides a clear introduction to the principles, structure, and practical application of the ISO Geometrical Product Specification (GPS) system — the global framework for defining and interpreting engineering requirements. Participants gain an understanding of how engineering information should be presented, how 2D and 3D product definition data is used within the ISO GPS framework, and the essential rules that govern dimensions, tolerances, and specification practices. Topics such as geometrical tolerancing and surface texture are introduced at a high level, with separate specialist courses available for deeper coverage. The course emphasises good drawing practice and correct application of ISO GPS conventions to ensure clear, unambiguous, and standards-compliant product definition.

Course Objectives:

By completing this course, participants will:

• Understand the ISO GPS system - Gain an overview of the structure, hierarchy, and purpose of ISO GPS standards and how they govern product definition worldwide.

• Apply good technical product specification practice - Learn the essential rules for format, layout, dimensional presentation, scales, the use of letters and numbers, and the correct use of 2D and 3D data.

• Recognise the core principles of product definition - Understand how ISO GPS defines and controls engineering requirements throughout the product lifecycle.

• Interpret tolerances and supplementary information - Receive an introductory overview of linear tolerances, general tolerances, surface texture indications, and the role of geometrical tolerances within ISO GPS.

• Understand the foundations of GPS concepts - Become familiar with key concepts such as features, features of size, size tolerances, the Envelope Requirement, and the basic structure of geometrical specification.

• Improve drawing quality and compliance - Learn how to apply ISO GPS rules consistently to produce professional, unambiguous engineering documentation.

Who it is for:

The course is designed to be accessible to participants from all industries — whether new to geometrical tolerancing or with prior experience.

The course is particularly valuable for:

• Design and Mechanical Engineers

• Inspectors and Inspection Planners

• Drafters

• Machinists, Operators, and Tooling Engineers

• Sales, Purchasing, and Quality personnel

• Managers, Supervisors, and Production Associates

• Anyone who needs to read, interpret, or work with the standards on engineering specification

  
  

Requirements:

• Ideally, participants have some familiarity with engineering drawings and a background in design, production, or inspection, including the ability to interpret how parts are represented on drawings.

• Delegates don't need to bring materials, laptops etc. All materials are provided by GD&T Academy.

• Participants are welcome to supply drawings or components, which may be integrated into exercises to enhance course applicability.

• An upper limit of 10 delegates is advised to ensure effective learning.

Materials provided:

• Detailed course notes including drawing examples

• Workbook with exercises and other printable handouts

• Quizzes and knowledge checks to gauge progress throughout the course

• Certificate of course completion

Delivery Format:

• Onsite or online delivery

Duration:

• 1 day

Course Syllabus:

Standards in context

• • BS 8888 and the ISO system
  
  Technical Product Specification

  • Principles

  • Use of 2D and 3D data

  • Letters and numbers (covering metric and imperial requirements)

  • Dimensions
  

  Tolerances

  • Linear tolerances (including limits and fits)

  • Geometrical tolerances

  • General tolerances (including BS EN 22768)

  • Surface texture

  • Edge tolerance
  

  Geometrical Product Specification

  • The four fundamental geometrical properties

  • the Seven Step system

  • Features and features of size

  • Size tolerances, the Envelope Requirement and ISO 14405-1

  • Markings on drawings

  • Compliance and implementation

To book a course, discuss possible dates, or for further information:

About This Course: