Nondestructive Testing Handbook, fourth edition: Volume 1, Liquid Penetrant Testing differs from the third edition in many ways. A new chapter on the fluorescent technique and ultraviolet radiation has been added; sections covering safety, materials, and probability of detection have been significantly updated, as have citations to applicable standards. The fifteen-chapter Handbook features full color throughout with bright, clear figures and more than 200 new photographs that clearly illustrate important principles. An updated glossary and index make accurate searches fast and easy. Over 70 subject matter experts from around the world participated in the development.