American National Standard codes

ASCII American National Standard Code for Information... 

EIA-358-C ANSI X3.4 American National Standard Code for Information Interchange for Numerical Machine Control Perforated Tape... 

ANSI B31.8, American National Standard Code for Pressure Piping—Gas Transmission and Distribution Piping Systems, American National Standards Institute, 1430 Broadway, New York, NY 10018. 

Code Administration The American Society of Mechanical Engineers has written the ASME Boiler and Pressure Vessel Code, which contains rirles for the design, fabrication, and inspection of boilers and pressure vessels. The ASME Code is an American National Standard. Most states in the United States and all Canadian provinces have passed legislation which makes the ASME Code or certain parts of it their legal requirement. Orrly a few jurisdictions have adopted the code for all vessels. The others apply it to certain types of vessels or to boilers. States employ inspectors (usually under a chief boiler inspector) to enforce code provisions. The authorities also depend a great deal on insurance company inspectors to see that boilers and pressure vessels are maintained in a safe condition. 

American National Standards Institute (ANSI), formerly American Standards Association (ASA). ANSI promulgates the piping codes used in the chemical-process industries. 

The mean time to failure of various instrumentation and equipment parts would be known from the manufacturer s data or the employer s experience with the parts, which then influence inspection and testing frequency and associated procedures. Also, applicable codes and standards—such as the National Board Inspection Code, or those from the American Society for Testing and Materials, American Petroleum Institute, National Fire Protection Association, American National Standards Institute, American Society of Mechanical Engineers, and other groups—provide information to help establish an effective testing and inspection frequency, as well as appropriate methodologies. 

The wall thickness of the coil can be chosen by using any number of recognized codes and standards. In the United States, the most commonly recognized are American National Standard Institute (ANSI) B31.3 and B31.8, or American Petroleum Institute (API) Specification 12 K. Volume 1 has the tables for ANSI B31.3 and ANSI B31.8. Table. - -1... 

To reduce detailed written descriptions on flowsheets, it is usual practice to develop or adopt a set of s) mbols and codes which suit the purpose. Flowsheet symbol standardization has been developed by various professional and technical organizations for their particular fields. Most of these have also been adopted by the American National Standards Institute (ANSI). The following symbol references are related and useful for many chemical and mechanical processes ... 

National Fire Protection Association. Flammable and Combustible Liquids Code. ANSI/NFPA 30 An American National Standard. Prepared in conjunction with the American National Standards Institute. Quincy, MA. 

Many users have reported satisfactory performance of annealed or normalized and tempered steels produced before 1969, as shown in Figure 1. These steels have been used for pressure-retaining equipment at design stress levels allowed by the 1969 or earlier editions of commonly-accepted codes (such codes include the ASME Code, Section Vlli, Division 1 the standards of the American National Standards Institute and, for the lower-strength materials, those of Deutsche Industrie-Normen). However, pressure vessels in hydrogen service have also been constructed using the higher allowable stresses permitted in either Section VHI, Division 2, or modifications of Section III of the ASME Code. Quenched and tempered or normalized and tempered steels have normally... 

This code or standard was developed under procedures accredited as meeting the criteria for American National Standards. The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia,... 

The American National Standards Institute (ANSI) has established a voluntary consensus standard for recording basic facts relating to the nature and occurrence of work injuries, ANSI Z16.2.( ) This standard has been in use for more than 30 years and provides a consistent baseline for many report formats. The standard focuses on injury to personnel and presents standard classification categories. If alternate codes are used in incident reports, special effort and notation must be made to avoid confusing the reader. 

There are seven common thermocouple types as identified by the American National Standards Institute (ANSI). They are identified by letter designation and are described in Table 2.33. There are four other thermocouple types that have letter designations however, these four are not official ANSI code designations because one or both of their paired leads are proprietary alloys. They are included at the end of Table 2.33. Although Table 2.33 lists the standard commercially available thermocouples, there are technically countless other potential thermocouples because all that is required for a thermocouple is two dissimilar wires. 

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