AWS - A2.4:2012
Standard Symbols for Welding, Brazing and Nondestructive Examination (AWS A2.4)
|Publication Date:||1 January 2012|
|ICS Code (Welding, brazing and soldering in general):||25.160.01|
1.1 Scope. This standard presents a system for indicating welding, brazing, and nondestructive examination requirements. The system includes provisions for the graphical representation of welds, brazes, and nondestructive examination methods with conventions for specifying, at a minimum, the location and extent of their application. Optional elements and supplementary symbols provide a means for specifying additional requirements. The figures included with the text are intended to show how the correct format and applications of symbols maybe used to convey welding, brazing, and nondestructive examination information. They are not intended to represent recommended welding, brazing, non destructive examination, or design practice. The clause addressing brazing uses the same symbols that are used for welding. The clause on nondestructive examination symbols establishes the symbols to be used on drawings to specify nondestructive examination for determining the suitability of components. The nondestructive examination symbols included in this standard represent nondestructive examination methods as discussed in the latest edition of AWS B1.10M/B1.10,Guide for the Nondestructive Examination of Welds. Definitions and the details for the use of the various nondestructive examination methods are found in AWSB1.10M/B1.10.The limitations included in specifications and codes are also beyond the scope of this standard.1.2 Units of Measurement. This standard does not require units of measure. Therefore, no equivalents or conversions are contained except when they are cited inexamples.1.3 Safety. Safety and health issues and concerns are beyond the scope of this standard and therefore are not addressed herein. Safety and health information is available from the following sources: American Welding Society:(1) ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes(2) AWS Safety and Health Fact Sheets(3) Other safety and health information on the AWS website Material or Equipment Manufacturers:(1) Material Safety Data Sheets supplied by materials manufacturers(2) Operating Manuals supplied by equipment manufacturers Applicable Regulatory Agencies Work performed in accordance with this standard may involve the use of materials that have been deemed hazardous, and may involve operations or equipment that may cause injury or death. This standard does not purport to address all safety and health risks that may be encountered. The user of this standard should establish an appropriate safety program to address such risks as well as to meet applicable regulatory requirements' Z49.1 should be considered when developing the safety program.
This standard establishes a method for specifying certain welding, brazing, and nondestructive examination information by means of symbols. Detailed information and examples are provided for the... View More
This standard establishes a method for specifying certain welding, brazing, and nondestructive examination information by means of symbols. Detailed information and examples are provided for the construction and interpretation of these symbols. This system provides a means of specifying welding or brazing operations as well as nondestructive examination, including the examination method, frequency, and extent..View Less