TS 12699

TS 12699 is a vocational standard for the solderer working with soft soldering. It defines the occupation, sets out its classification, identifies the minimum tools and equipment used in the trade, and addresses the qualities expected at each level together with how those qualities are measured and assessed. Soft soldering is a joining method that depends on controlled heat and filler metal, so precision, cleanliness, and suitable equipment are central to the work.

The technical frame of soft soldering

In general technical terms, soft soldering joins metal parts without melting the base metal, using a solder alloy with a lower melting range. Surface preparation, heat control, flux selection, and joint design all influence the result. In practice, the quality of a soldered joint is judged not only by whether the parts are joined, but also by strength, continuity, appearance, and suitability for service.

This standard’s scope focuses on how the occupation is defined and classified, what minimum equipment is expected for the trade, and how professional characteristics are measured and evaluated at each class. It provides a structured framework for comparing competence levels in soft soldering-related work, supporting consistent vocational assessment and role definition.

• Definition and classification of the occupation
• Minimum tools and equipment used in the trade
• Professional characteristics required for each class
• Measurement and evaluation of those characteristics