CEN/TS 14773 [documento electrónico] : postal services: quality of service: measurement of loss and substantial delay in priority and first class single piece mail using a survey of test letters / European Committee for Standardization
CEN/TS 14826 [documento electrónico] : postal services: automatic identification of items: two dimensional bar code symbol print quality specification for machine readable digital postage marks / European Committee for Standardization
R106-001 : March 2002: guidelines for product committees on the preparation of standards related to human exposure from electromagnetic fields / European Committee for Electrotechnical Standardization
R210-002 : March 1993: Guide to generic standards / European Commitee for Electrothecnical Standardization