Standards, including procedures, rules, codes, regulations, and jurisdictional requirements, play an important role in the engineering world. They furnish a means of ensuring consistent designs, quality, and operating characteristics with adequate safety factors, safe operation of components, and well-defined configurations. Their development, applications, limitations, and benefits are detailed in this book to give the user, specifier, and standard writer a proper perspective of their importance, usefulness, and limitations, to promote their effective use, and to improve the quality of future standards.