Useful Standards for Piping Most useful standards in mechanical industry are the ANSI-(American National Standard Institute) standards.Each country has its own Codes and Standards. On global basis, American National Standards are the most widely used and compliance with those requirements are accepted world over.In general, other than American Standards such as British ,German,Japanese,Europian and various other standards depending upon the requirement and availability are also used for design and selection of Piping Systems. Not all American Standards are issued directly by American National Standards Institute. However in process/power industry ,the Material Standards are covered under ASTM (American Society for Testing and Materials) and Dimension Standards under ANSI (American National Standards Institute). Most of these Standards are adapted by ASME (American Society for Mechanical Engineers). Some of the commonly used Standards referred by Piping are : The American
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