Historical
ASME B31J-2008 (R2013)
Standard Test Method for Determining Stress Intensification Factors (i-Factors) for Metallic Piping Components
This Standard sets forth an engineering procedure deemed appropriate for the safe determination of the fatigue capacity of a piping component or joint in most services, relative to a standard butt-welded joint. However, the procedure cannot possibly foresee all geometries and services possible, and the use of competent engineering judgment may be necessary to extend the procedure to cover unusual geometries and service conditions or to ensure a safe testing environment.
American Society of Mechanical Engineers [asme]