Comprise both mandatory and optional requirements.
Involve a wide range of stakeholders with numerous producing entities.
ASME regulations are legally adopted and enforced by individual states in the U.S.
Focused primarily on Mechanical Engineering but play a leading role as codes and standards across all technical fields.
Classified into four categories:
Professional Societies
Trade Associations
Test and Certification Organizations
Standards Developing Organizations
▣ Overview
ASME Code : Established to ensure public welfare and system safety for users.
Code Case: Issued swiftly by the committee when there is a need for interpretation of existing codes or to address topics not covered in the current code.
ASME: The American Society of Mechanical Engineers is responsible for certification and standardization in the mechanical field.
▣ ASME Code Structure I
Contains sections with common applications.
Classified by function: Sections for manufacturing and maintenance.
Includes regulations for the design, fabrication, installation, testing, and inspection of boilers, pressure vessels, and other components.
▣ ASME Code Section II
Contains information on various materials.
Includes tables and charts according to regulatory requirements.
▣ ASME Code Section III
Subsection NCA: General requirements common to Divisions 1 and 2, including equipment classification, responsibilities of related organizations, quality assurance requirements, authorized inspection, qualification, and management.
Lists exempted items (NCA-1130b) and quality grade groups as per Quality Group (Reg. Guide 1.26).
▣ ASME Code Section XI
Editions and changes (Addenda) are published every three years.
Nondestructive testing methods: visual inspection, surface examination, volumetric examination, and alternative methods.
Items exempted in ASME III (NCA-1130b): valve operators, controllers, position indicators, pump impellers, instruments.
▣ ASME Code Grades
▣ ASME Qualification Certification System
Establishes procedures to certify companies that can engage in design, fabrication, and construction according to ASME Boiler and Pressure Vessel Code requirements.
Differentiates items with specific stamps from those without.
Applicable items:
General Industry: All pressure vessels above 5 psig, including heat exchangers, columns, drums, etc.
Nuclear Industry: Reactor pressure vessels, tank containment vessels, pumps, valves, core supports, structures, piping, etc.
▣ ASME Authorized Certification System
Ensures pressure-containing equipment related to safety is designed, fabricated, installed, and operated according to design requirements and relevant standards (ASME Code).