| 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 |
