ISO 9000 ISO 9001, and concluded that it was necessary to create a new QMS model for the next 25 years. They subsequently commenced the official work on creating a revision of ISO 9001, starting with the new QM principles. This moment was considered by important specialists in the field as "beginning of a new era in the development of quality management systems." As a result of the intensive work from this technical committee, the revised standard ISO 9001:2015 was published by ISO on 23 September 2015. The scope of the standard has not changed; however, the structure and core terms were
Symbols and conventions used in welding documentation Symbols and conventions used in welding documentation The symbols and conventions used in welding documentation are specified in national and international standards such as ISO 2553 "Welded, brazed and soldered joints -- Symbolic representation on drawings" and ISO 4063 "Welding and allied processes -- Nomenclature of processes and reference numbers". The US standard symbols are outlined by the American National Standards Institute and the American Welding Society and are noted as "ANSI/AWS". Due in part to the growth of the oil industry, this symbol set was used during the 1990s in about 50% of the world's welding operations. An ISO