Part 3 includes detailed rules for buckling under external pressure, using a more sophisticated approach than Division 1’s simple charts.
A hydrostatic or pneumatic test is required. Test pressure formulas differ from Div 1, using a lower factor but based on more precise calculated stresses. asme section 8 div 2 pdf
Consider Div 2 when:
– Access via ASME’s BPVC Connect (annual fee, online viewing). Part 3 includes detailed rules for buckling under