Since publication of the second edition of this book in 2006 more than ten ISO GPS standards have been revised, involving the introduction of new symbols and concepts, and in many cases default interpretation of the tolerance indicators have changed, in addition two new versions of American standard ASME Y14.5 (2009 and 2018) have appeared. This book is an ideal introduction to geometrical dimensioning and tolerancing for students, and an essential reference for researchers and practitioners in the fields of design, manufacturing and inspection.
Georg Henzold spent many years as manager of the department for standardization of a manufacturer for power plant machinery. He was also a longstanding chairman of the committee dealing with the standardization in the field of geometrical dimensioning and tolerancing in the German Standardization Institute DIN, and in the European Committee for Standardization CEN. He is a long-time delegate in the pertinent committees of the International Standardization Organization ISO.