NAC455C.220. Lap-seam crack.

Latest version.

1. The shell or drum of a boiler or pressure vessel with a lap-seam crack along a longitudinal riveted joint must be immediately discontinued from use. The crack may not be repaired.

2. As used in this section, “lap-seam crack” means a crack found in lap seams, extending parallel to the longitudinal joint and located between or adjacent to rivet holes.

(Added to NAC by Div. of Industrial Relations by R101-02, eff. 12-15-2004)

                    
                        var val = document.getElementById('citecontent').innerHTML;
                        art.dialog.defaults.title = window.location.href;
                        art.dialog.data('cite', val);
                        art.dialog.data('homeDemoPath', '/Scripts/plus/artDialog/');
                        art.dialog.open('/Scripts/plus/artDialog/citeiframe.html');