ISO 6582:1983

Serves as a guide in the co-ordination of system design, to minimize the variety of programs required, to promote uniformity of programming techniques, and to foster interchangeability of programs between NC drawings and flame cutting machines used in the shipbuilding industry. The "ESSI format" may be used in connection with any data code for punched cards, punched tapes, magnetic tapes etc. Use of standardized data codes is however strongly recommended.