As a "language", these symbols are the most precise means for designers and detailers to place welding, brazing, and nondestructive examination information on drawings AND the most mistake-free means for welding personnel to adhere to original plans.
In both the United Kingdom and the United States of America,
there is a legislative framework that assigns a very large measure
of responsibility to employers for the health and safety of their
employees. The detailed approach is slightly different and readers
need to familiarise themselves with the requirements. Where they
have doubts, they should consult the enforcing authorities for
• The Health and Safety Executive (United Kingdom)
• Occupational Safety and Health Administration (United States
Section IX of the ASME Boiler and Pressure Vessel Code relates to the qualification of welders, welding operators, brazers, and brazing operators and the procedures employed in welding of brazing in accordance with the ASME Boiler and Pressure Vessel Code and the ASME B31 Code for Pressure Piping. Section IX establishes the basic criteria for welding and brazing which are observed in the preparation of welding and brazing requirements that affect procedure and performance.
RAFAEL MENEZES NUNES UFRGS BRUNO L. ALIA RICHARD L. ALLEY AMERICAN WELDING SOCIETY WILLIAM R. APBLETT, JR. WILLIAM A. BAESLACK III THE OHIO STATE UNIVERSITY WILLIAM BALLIS COLUMBIA GAS OF OHIO CLIFF C. BAMPTON ROCKWELL INTERNATIONAL SCIENCE CENTER PROBAL BANERJEE AUBURN UNIVERSITY JOHN G. BANKER EXPLOSIVE FABRICATORS INC. ROBERT G. BARTIFAY ALUMINUM COMPANY OF AMERICA ROY I. BATISTA ROY E. BEAL AMALGAMATED TECHNOLOGIES INC. RAYMOND E. BOHLMANN MCDONNELL AIRCRAFT COMPANY SÉRGIO D. BRANDI