Plastics welding personnel. Qualification testing of welders. Thermoplastics welded assemblies
Plastics welding personnel. Qualification testing of welders. Thermoplastics welded assemblies
Мы хотим включить аналитику посещений, чтобы понимать, что искать людям на сайте. Без вашего согласия счётчики не загружаются. Политика конфиденциальности
1 Scope This European Standard specifies the method of testing the knowledge and skill of a welder who is required to carry out welds on thermoplastics in new constructions and repair work. The skill examination of a welder is an essential condition for the assurance of the quality of the welding work. The application of this standard guarantees that the examination is carried out according to a uniform test procedure. This European Standard applies when the contractor or the authorities responsible for the application require it. Gas and water utility network industries with alternative qualification programmes are excluded from this standard. This European Standard applies to the following welding processes :
— hot gas welding : round nozzle , high speed nozzle, wedge;
— extrusion welding ;
— heated tool welding : butt, saddle, socket, wedge;
— electrofusion welding : socket, saddle;
— ...
Другие стандарты BS