HAR 6-77-41 General requirements

withstand operating pressures and other anticipated loadings without impairment of its serviceability with unit stresses equivalent to those allowed for comparable material in pipe in the same location and kind of service. However, if design based upon unit stresses is impractical for a particular component, design may be based upon a pressure rating established by the manufacturer by pressure testing that component or a prototype of the component. [Eff ] (Auth: HRS '269-6) (Imp: 49#

C.F.R. '192.143, October 1, 1990)#