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New ISO Handbook demystifies geometrical product specifications


Issue 35 – February 2012

International Organization for Standardization (ISO) and Danish Standards (DS) have jointly published the ISO Geometrical product specifications handbook – Find your way in GPS. The Handbook covers geometrical product specifications (GPS), for which nearly 120 ISO Standards provide a globally harmonised base for technical drawing, with benefits for manufacturing and trade.

GPS Standards provide an international language of symbols to express tolerances in technical drawing. This makes it possible for a drawing of a component developed in one country to be sent to another country, where the drawing can be understood and the component manufactured, without the designer and supplier having any common language except GPS.

The ISO Geometrical product specifications handbook – Find your way in GPS, is written by Dr Henrik S. Nielsen, Chair of ISO technical committee (TC) 213, which develops GPS Standards.

'The purpose of this Handbook is partly to function as a text book in technical schools and universities,' says Dr Henrik. However, it can also be used for self-study and as a post-study reference. The aim of this Handbook is to give the reader sufficient knowledge to on the one hand read and interpret GPS drawings and on the other hand have enough 'vocabulary' and knowledge of the grammar to express geometrical requirements for a component as correctly formulated GPS requirements.'

Through easy-to-understand colour illustrations and specific examples, the Handbook guides the reader through the basic rules to interpret the graphic GPS language and provides a step-by-step procedure for tolerancing components and products using GPS.

The Handbook also shows how everyone involved in product realisation, from idea conception to manufacturing and verification, can benefit from the use of GPS. This is because GPS tolerances can express functional requirements more precisely and therefore be made larger, so that components become less expensive to produce.

→ Order the ISO Geometrical product specifications handbook – Find your way in GPS by calling 0800 782 632 during business hours or emailing enquiries@standards.co.nz.

 
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