ASME codes and standards

This Appendix provides a listing of standards incorporated in this Code by reference, and the names and addresses of the sponsoring organizations. It is not practical to refer to a specific edition of each standard throughout the Code text instead, the reference dates for the specific editions are shown. For ASME codes and standards, specific edition reference dates are not provided rather, the latest published edition in effect at the time this Code is specified is the specific edition referenced by this Code. Subsequent issues and revisions of these referenced standards and any new standards incorporated in the Code by reference in Code Addenda will be listed (after review and acceptance by the Code Committee) in revisions of this Appendix. All identical specifications are indicated by the ASME/originating organization symbols. 

Subject matter experts professionals within process safety rely on a multitude of the ASME codes and standards, some that were most often quoted in my presence include ... 

RA-search s database includes all of the published Interpretations to the following ASME Codes and Standards ... 

The American Society of Mechanical Engineers (ASME) United Engineering Center 345 East 47th Street New York, NY 10017 The ASME Boiler and Pressure Vessel Code, under the cognisance of the ASME PoHcy Board, Codes, and Standards, considers the interdependence of design procedures, material selection, fabrication procedures, inspection, and test methods that affect the safety of boilers, pressure vessels, and nuclear-plant components, whose failures could endanger the operators or the pubHc (see Nuclearreactors). It does not cover other aspects of these topics that affect operation, maintenance, or nonha2ardous deterioration. 

In the United Kingdom all conventional pressure vessels for use in the chemical and allied industries will invariably be designed and fabricated according to the British Standard PD 5500 or the European Standard EN 13445 or an equivalent code such as the American Society of Mechanical Engineers code Section VIII (the ASME code). The codes and standards cover design, materials of construction, fabrication (manufacture and... 

Process equipment design and materials must be documented by identifying the applicable codes and standards (e g., ASME, ASTM, API). If the codes and standards are not current, the DOE contractor must document that the design, construction, testing, inspection, and operation are still suitable for the intended use. If the process technology requires a design that departs from the applicable codes and standards, the contractor must document that the design and construction are suitable for the intended purpose. 

Recognized international codes and standards applicable to petroleum facilities should be used (e.g., API, ASME, NACE, NFPA, etc.) in the design and in any proposed modifications. However it should be realized that compliance with applicable codes and standards is not sufficient in itself to ensure a safe design is provide. 

NOTE Good design practice should be followed in the selection of fabrication methods, welding procedures, and materials for vendor-furnished steel pressureretalning parts that may be subject to temperatures below the ductile-brittle transition temperature. The published design-allowable stresses for metallic materials in internationally recognised standards such as the ASME Code and ANSI standards are based on minimum tensile properties. Some standards do not differentiate between rimmed, semi-killed, fully killed hot-rolled and normalised material, nor do they take into account whether materials were produced under fine- or course-grain practices. The vendor should exercise caution in the selection of materials intended for services between 0 °C (-20 °F) and 40 °C (100 °F). 

The world of codes and standards is an absolute labyrinth, so the emphasis here will be only on the main issues from ASME and PED, which cover about 80% of all worldwide requirements. The exceptions are China and India, who follow their own guidelines, although they are mostly focused on boiler applications. Also, we will concentrate on the industrial process applications and only refer to these applicable codes. 

Because of liquid hydrogen s extreme cold temperature, the equipment design must be of materials that have suitable properties for cold temperature operation. Vessels and piping are designed to ASME code and piping standards for the pressure and temperatures involved. 

Design codes and standards employed (API, NFPA, ANSI, ASME, NACE, etc.). 

The pressure vessel design codes and standards include lists of acceptable materials, in accordance with the appropriate material standards. The ASME BPV Code Sec. II Part D gives maximum allowable stresses as a function of temperature and maximum temperatures permitted under Sections I, III, VIII, and XII of the BPV code for ferrous and nonferrous metals. The design of pressure vessels using reinforced plastics is described in ASME BPV Code Sec. X. 

The preferred types of joint and recommended designs and profiles are given in the codes and standards. See, for example, ASME BPV Code Sec. VIII D.l, Part UW— Requirements for pressure vessels fabricated by welding. 

The national pressure vessel codes and standards require that all pressure vessels be subjected to a pressure test to prove the integrity of the finished vessel (ASME BPV Code Sec. VIIID. 1 Part UG-99). A hydraulic test is normally carried out, but a pneumatic test can be substituted under circumstances where the use of a liquid for testing is not practical. Hydraulic tests are safer because only a small amoimt of energy is stored in the compressed liquid. A standard pressure test is used when the required thickness of the vessel parts can be calculated in accordance with the particular code or standard. The vessel is tested at a pressure 30% above the design pressure. The test pressure is adjusted to allow for the difference in strength of the vessel material at the test temperature compared with the design temperature, and for any corrosion allowance. 

Material from the ASME Boiler and Pressure Vessel Code is reproduced with permission of ASME International, Three Park Avenue, New York, NY 10016. Material from the API Recommended Practices is reproduced with permission of the American Petroleum Institute, 1220 L Street, NW, Washington, DC 20005. Material from British Standards is reproduced by permission of the British Standards Institution, 389 Chiswick High Road, London, W4 4AL, United Kingdom. Complete copies of the codes and standards can be obtained from these organizations. 

Codes and standards are usually prepared by professional bodies such as the ASME (American Society of Mechanical Engineers), the NFPA (National Fire Protection Association), and the API. These organizations generally receive their funding from industrial sponsors, the sale of journals and seminars, and the membership fees of engineers and other technical professionals. Generally, the standards are developed by committees made up of professionals who have many years of experience in the pertinent specialist area. 

Founded in 1880, the ASME develops standards and test codes through its extensive network of committees (ASME s first code was a boiler test code, published in the year 1884). The association has around 100,000 members. It is run through a Board of Governors that has delegated codes and standards work to a 22-member council. Roughly 4000 engineers, manufacturers, and other interested parties sit on the 120 main committees that work on standards and codes. 

Design and fabrication shall be as per international codes and standards such as DIN, JIS, ASME Sec Vlll, IX, or any other prescribed by local statutory authorities. 

Tomimatsu M, Asada S, Ohata H and Kobayashi H (2006), Overview of the Japanese Code of Surveillance Test Program for Reactor Vessels , Proceedings ASME 47527, Volume 1 Codes and Standards 443 50. 

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