| 21 | Vehicles, installations and equipments for railway applications | 10 | Disturbance voltage | Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus EN 50121-4:2016 5 |
| 11 | Radiated disturbances | Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus GB/T 24338.5-2018 5 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus IEC 62236-4:2018 5 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus EN 50121-4:2016 5 |
| 12 | Measurement of electrostatic discharge | Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus GB/T 24338.5-2018 6 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus IEC 62236-4:2018 6 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus EN 50121-4:2016 6 |
| 13 | Continuous RF electromagnetic field disturbances | Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus GB/T 24338.5-2018 6 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus IEC 62236-4:2018 6 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus EN 50121-4:2016 6 |
| 14 | Measurement of electrical transients | Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus GB/T 24338.5-2018 6 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus IEC 62236-4:2018 6 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus EN 50121-4:2016 6 |
| 15 | Surges | Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus GB/T 24338.5-2018 6 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus IEC 62236-4:2018 6 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus EN 50121-4:2016 6 |
| 16 | Continuous induced RF disturbances | Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus GB/T 24338.5-2018 6 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus IEC 62236-4:2018 6 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus EN 50121-4:2016 6 |
| 17 | Power frequency electromagnetic field | Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus GB/T 24338.5-2018 6 |
