TS 12757

TS 12757 is a vocational standard for the welder who performs submerged arc welding, defining the occupation, its classification, and the minimum tools, equipment, and apparatus used in the trade. It also sets out the basis for measuring and evaluating the characteristics expected from each class within this profession, giving the occupation a structured technical framework.

What submerged arc welding means in practice

Submerged arc welding is an arc-welding process in which the arc is concealed beneath a blanket of granular flux. In general technical terms, this arrangement supports high deposition rates, deep penetration, and stable welding conditions, which is why the process is widely associated with repetitive, longer welds and thicker sections. The focus of this standard is not the welding process itself, but the professional definition, class structure, and competence profile of the welder using that process.

Assessment and qualification structure

According to the scope, the standard covers the minimum tools and equipment used in the profession, together with the measurement and evaluation of the attributes required for each class of submerged arc welder. That places the document in the field of vocational classification and competence assessment. Specific test items, acceptance limits, or exact examination procedures can only be stated where the standard text explicitly provides them.

• Professional definition and classification of the welder
• Minimum tools, equipment, and apparatus used in the trade
• Measurement and evaluation of class-based characteristics
• Competence framework for submerged arc welding work