Abreviations

American

• ANSI - American National Standards Institute - ANSI has a flange standard called ASA
• ASME - American Society of Mechanical Engineers
• API - American Petrolium Institute
• ASTM - American Society for Testing and Materials

European

• PED - Pressure Equipment Directive
• EN - International Organisation for Standardisation

Other

• BSi - British Standards Institute
• DIN - Deutsches Institut Normung
• ISO - International Organisation for Standardisation

For information specifically on Safety Valve Codes and Standards click here: Safety Valve Codes and Standards