ISO 9735-7-1999 管理、商业和运输业用电子数据交换(EDIFACT).应用层语法规则(语法版本号:4).第7部分:成批EDI的安全原则
Electronic data interchange for administration, commerce and transport (EDIFACT) - Application level syntax rules (Syntax version number: 4) - Part 7: Security rules for batch EDI (confidentiality)