National Physical Laboratory

Geometrical Tolerancing to BS 8888 and ISO standards - Level 1

05 March 2018 - 07 March 2018

A three day training course (to BS 8888 and ISO standards) intended for anyone who needs to understand the theory and practice of Geometrical Tolerancing (GD&T).

Aims & Objectives

Specifiers or designers will learn how to apply geometrical tolerancing in an consistent and systematic manner, ensure a specification is complete and avoid common mistakes; specification interpreters will learn how to read geometrical tolerances in a logical and systematic way, and recognise common errors and incomplete specifications.

When used correctly, the benefits of geometrical tolerancing include:

  • Improved productivity, reduced costs and enhanced quality
  • Larger tolerance zones and less ambiguous specifications
  • The facility to tolerance form and relationships such as coaxiality
  • Using datum structures that manufacturing and inspection can benefit from
  • Fewer disputes over compliance or non-compliance of components
  • Reducing scrap, re-work rates and fewer queries due to incomplete specifications

Click here for full course details

Training Provider

This course is delivered by Iain Macleod Associates, NPL Approved Training Provider


NPL, Teddington


£1,050 +VAT per delegate
(cost covers course fees, course notes, lunch and refreshments)


Please note that this course is now full


Please email Iain Macleod


NPL Training


Please note that the information will not be divulged to third parties, or used without your permission