Specification and qualification of welding procedures for metallic materials. Welding procedure specification - Electron beam welding Ingestion-build-207047 ISO 20677 describes an expanded

ISO 20677  describes an expanded profile specification and profile connections that permit greater flexibility and functionality than ISO 15076-1

Functional extensions concerning the engineering process

It is implicit that tanks and vessels conforming to BS EN 13121-2 should be made only by manufacturers who are competent and suitably equipped to fulfil all requirements

while awaiting the adoption of verifiable European criteria

Specification and qualification of welding procedures for metallic materials. Welding procedure specification - Electron beam welding Ingestion-build-207047 ISO 20677 describes an expandedBS EN ISO 15609 3: 2004 specifies requirements for the content of welding procedure specifications for electron beam welding. Variables listed in this standard are those influencing the quality and properties of the welded joint.