RADIOGRAPHIC QUALITY ASSESSMENT OF WELDED JOINTS IN BUILDING STRUCTURES PRODUCED ACCORDING TO REQUIREMENTS OF STANDARD EN-1090-2, QUALITY LEVEL "B+"

While assessing the quality of welded joints it may become necessary to establish various quality levels in the same joint or implement specific requirements for an already adopted quality level. The latter case can be observed in standard EN 1090-2, in which additional requirements were adopted for quality level B and thus a new quality level designated as B+ was created. Most of the additional requirements are concerned with imperfections detected by means of radiography. For this reason it was necessary to compare the principles governing the assessment of the quality of welded joints from radiographic examination point of view, according to the requirements of standard EN ISO 5817 and those of EN 1090-2. A conducted comparative analysis aims at optimising the aforesaid principles in relation to the requirements presented therein.