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Standards designation

EVS	Estonian standard
EN	European standard (published by an CEN or CENELEC)
EN ISO	International standard adopted as an European standard
ISO	International Organization for Standardization’s standard
IEC	International Electrotechnical Commission’s standard
HD	CENELEC’s harmonisation document

EVS-EN	European standard implemented in Estonia
EVS-EN ISO	International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC	International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC	International electrotechnical standard implemented in Estonia
EVS-ISO	International standard implemented in Estonia

A, AMD	amedment
+A	a full standard plus the amendment
/A	only amendment
COR, AC	corrigendum
+COR	a full standard plus the corrigendum
NA	national annex
+NA	a full standard plus the national annex
/NA	only national annex
TS	technical specification
TR	technical report
CWA	agreement, developed by a CEN or CENELEC
prEVS-EN (etc)	draft standard

et	the standard is in Estonian only
en	the standard is in English only
et-en	the standard is in Parallel text Estonian-English