The worker must not stand in front of the flange and not stand side by side, stand behind the welds or spot leaks, including the smallest ones, must be used in the area of risk point.
A worker must not stand in front of the flange. And do not stand on the side To stand back spot welds or leaks. Including the need for people in areas at risk to a minimum.
The worker must not standing in front of the flange, and do not stand to the side. By standing behind the welding or spot leaks. As well as to use people at the risk.