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March 1926 Formation of the B31 Pressure Piping Committee.
October 1926
PTC 4 Test Code for Stationary Steam Generating Units first issuance.
June 1927
B16e Steel Pipe Flanges and Flanged Fittings first issuance, precursor to and redesignated B16.5 in 1953.
1928
American Engineering Standards Committee, AESC, reorganized as the American Standards Association, ASA, (later to be known as the American National Standards Institute, ANSI).
April 1928
PTC 6 Test Code for Steam Turbines first issuance.
October 1928 The certification stamp used on vessels built and inspected under the Boiler and Pressure Vessel Code was altered, from the clover leaf with the letter S for all vessels by the clover leaf with S, L, H, M, or U to designate the section of the Boiler and Pressure Vessel Code under which it was inspected.
December 1934
Formation of the Advisory Board of Standards and Codes, consisting of a chairman from the ASME Council and one member from each of the following committees: Boiler Code, Standardization, Power Test Codes, and Safety.
1935
B31.1 Code for Pressure Piping first issuance.
1937 A17 American Recommended Practice for the Inspection of Elevators Inspectors Manual first issuance.
1937
Boiler and Pressure Vessel Code Section IX Welding Qualifications first issuance. (This section was originally a supplement to section VIII, but with the 1941 edition the section was published separately.)
September 1938 Adoption of the Boiler and Pressure Vessel Code by Canada.
August 1942 At the request of the War Production Board, a special war committee was appointed and, functioning under War Standards Procedure, developed revised pressure temperature ratings for all pressure classes for steel pipe flanges and flanged fittings with the object of conserving essential war materials during the emergency of World War II. These revised ratings were published as American War Standard, B16e5-1943.
1943
B30.2 Safety Code for Cranes, Derricks, and Hoists first issuance.
1945
Formation of the PTC 22 Gas Turbine Power Plants Committee.
February 1947
International Organization for Standardization (ISO) formed
December 1948
The Boiler and Pressure Vessel Committee recommended to the ASME Performance (then Power) Test Codes Committee that a code be prepared on the testing of safety and relief valves. This request resulted in the publication of PTC 25Pressure Relief Devices.
1953
PTC 22 Gas Turbine Performance Test Codefirst issuance.
August 1954 The Atomic Energy Act of 1954 reversed the government monopoly and permitted the commercial use of atomic energy technology. Soon after, the US AEC began the task of writing regulation and devising licensing procedures for manufacturers and utility owners. The need for codes and standards in commercial nuclear power was created.
1955 Due to the very extensive developments in the elevator design and construction, the A17 Elevators and Escalators Committee decided that the A17.1 standard should be completely rewritten and brought up to date.
1955 The Boiler and Pressure Vessel Committee appointed a special committee on nuclear power, the predecessor to the Boiler and Pressure Vessel Code Section III Committee.
July 1955 Formation of the A112 Plumbing Materials and Equipment Committee.
1956 The first coverage for nuclear power came in the form of Boiler and Pressure Vessel Code Cases. (1)
1963 Boiler and Pressure Vessel Code Section IIINuclear Vessels first issuance.
February 1963 Formation of the B89 Dimensional Metrology Committee.
1965
Conformity Assessment included nuclear vessels in its certification program.
1967 Formation of the N45 Reactor Plants Committee (Later to be the Boiler and Pressure Vessel Section XI Committee).
1968
Boiler and Pressure Vessel Code Section VIII Division 2Alternative Rules for Construction of Pressure Vessels first issuance.
1968 Boiler and Pressure Vessel Code Section XFiber-Reinforced Plastic Pressure Vessels first issuance.
1968
Code for Pumps and Valves for Nuclear Power first Issuance. (The standard would later be incorporated into section III.)
1968
Conformity Assessment moved to a new “quality based system” for its certification programs, ASME gets involved in surveys/reviews.
1968
American Standards Association, ASA, reorganized as the United States of America Standards Institute, USASI, (later to be known as the American National Standards Institute, ANSI)
1968 The Federal government decided to use the ASME voluntary codes and standards for the regulation of industry.
1969
The N45 Reactor Plants Committee formed a committee on Quality Assurance Program Requirements, N45-3 (later to be called N45.2). This Committee was the precursor to the Nuclear Quality Assurance (NQA) Committee.
October 1969 United States of America Standards Institute, USASI, reorganized as the American National Standards Institute, ANSI.
1970
Boiler and Pressure Vessel Code Section XI Rules for Inservice Inspection of Nuclear Power Plant Components first issuance.
1970
Boiler and Pressure Vessel Code Section VI Recommended Rules for Care and Operation of Heating Boilers first issuance.
1971
Boiler and Pressure Vessel Code Section VNondestructive Examination first issuance.
1971
Boiler and Pressure Vessel Code Section IIINuclear Vessels was completely revised and entitled
